./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/shared_mem1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH --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 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:45:28,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:45:28,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:45:28,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:45:28,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:45:28,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:45:28,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:45:28,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:45:28,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:45:28,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:45:28,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:45:28,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:45:28,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:45:28,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:45:28,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:45:28,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:45:28,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:45:28,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:45:28,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:45:28,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:45:28,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:45:28,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:45:28,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:45:28,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:45:28,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:45:28,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:45:28,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:45:28,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:45:28,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:45:28,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:45:28,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:45:28,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:45:28,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:45:28,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:45:28,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:45:28,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:45:28,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:45:28,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:45:28,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:45:28,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:45:28,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:45:28,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:45:28,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:45:28,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:45:28,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:45:28,227 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:45:28,227 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:45:28,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:45:28,227 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:45:28,228 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:45:28,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:45:28,231 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:45:28,231 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:45:28,234 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:45:28,235 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:45:28,235 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:45:28,235 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:45:28,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:45:28,236 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:45:28,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:45:28,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:45:28,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:45:28,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:45:28,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:45:28,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:45:28,248 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:45:28,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:45:28,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:45:28,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:45:28,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:45:28,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:45:28,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:45:28,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:28,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:45:28,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:45:28,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:45:28,253 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:45:28,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:45:28,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:45:28,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:45:28,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:45:28,255 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-03 03:45:28,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:45:28,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:45:28,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:45:28,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:45:28,597 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:45:28,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-03 03:45:28,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/af7eb163c/974ff4629ce64ed98e80b9dd76e95c5b/FLAGd200d76a3 [2021-11-03 03:45:29,338 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:45:29,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-03 03:45:29,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/af7eb163c/974ff4629ce64ed98e80b9dd76e95c5b/FLAGd200d76a3 [2021-11-03 03:45:29,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/af7eb163c/974ff4629ce64ed98e80b9dd76e95c5b [2021-11-03 03:45:29,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:45:29,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:45:29,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:29,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:45:29,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:45:29,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:29" (1/1) ... [2021-11-03 03:45:29,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ac7e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:29, skipping insertion in model container [2021-11-03 03:45:29,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:29" (1/1) ... [2021-11-03 03:45:29,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:45:29,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:45:30,004 WARN L228 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_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-03 03:45:30,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:30,018 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:45:30,063 WARN L228 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_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-03 03:45:30,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:30,094 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:45:30,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30 WrapperNode [2021-11-03 03:45:30,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:30,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:30,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:45:30,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:45:30,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:30,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:45:30,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:45:30,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:45:30,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:45:30,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:45:30,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:45:30,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:45:30,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (1/1) ... [2021-11-03 03:45:30,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:30,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:45:30,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:45:30,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:45:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:45:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:45:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:45:30,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:45:30,974 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-03 03:45:30,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:30 BoogieIcfgContainer [2021-11-03 03:45:30,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:45:30,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:45:30,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:45:30,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:45:30,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:29" (1/3) ... [2021-11-03 03:45:30,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140fc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:30, skipping insertion in model container [2021-11-03 03:45:30,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:30" (2/3) ... [2021-11-03 03:45:30,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140fc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:30, skipping insertion in model container [2021-11-03 03:45:30,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:30" (3/3) ... [2021-11-03 03:45:30,986 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-03 03:45:30,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:45:30,992 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:45:31,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:45:31,048 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:45:31,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:45:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-03 03:45:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 03:45:31,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:31,069 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 03:45:31,070 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:31,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:31,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1727782104, now seen corresponding path program 1 times [2021-11-03 03:45:31,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:31,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480474321] [2021-11-03 03:45:31,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:31,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:31,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:31,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480474321] [2021-11-03 03:45:31,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480474321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:31,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:31,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:45:31,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546923216] [2021-11-03 03:45:31,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:45:31,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:45:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:45:31,285 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 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) 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) [2021-11-03 03:45:31,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:31,298 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-03 03:45:31,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:45:31,300 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 [2021-11-03 03:45:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:31,309 INFO L225 Difference]: With dead ends: 15 [2021-11-03 03:45:31,309 INFO L226 Difference]: Without dead ends: 8 [2021-11-03 03:45:31,312 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:45:31,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-03 03:45:31,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-03 03:45:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-11-03 03:45:31,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-03 03:45:31,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-03 03:45:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:31,348 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-03 03:45:31,348 INFO L471 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) [2021-11-03 03:45:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-03 03:45:31,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:45:31,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:31,349 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:31,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:45:31,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:31,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1888775881, now seen corresponding path program 1 times [2021-11-03 03:45:31,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:31,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99507157] [2021-11-03 03:45:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:31,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:31,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:31,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99507157] [2021-11-03 03:45:31,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99507157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:31,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:31,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 03:45:31,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127023166] [2021-11-03 03:45:31,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:45:31,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:31,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:45:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:45:31,814 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-03 03:45:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:32,085 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-03 03:45:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:45:32,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2021-11-03 03:45:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:32,087 INFO L225 Difference]: With dead ends: 15 [2021-11-03 03:45:32,088 INFO L226 Difference]: Without dead ends: 13 [2021-11-03 03:45:32,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:45:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-03 03:45:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-03 03:45:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2021-11-03 03:45:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-03 03:45:32,093 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2021-11-03 03:45:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:32,093 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-03 03:45:32,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-03 03:45:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-03 03:45:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:45:32,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:32,098 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:32,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:45:32,101 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:32,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2091148262, now seen corresponding path program 1 times [2021-11-03 03:45:32,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:32,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894405808] [2021-11-03 03:45:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:32,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:32,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:32,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894405808] [2021-11-03 03:45:32,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894405808] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:45:32,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572695077] [2021-11-03 03:45:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:32,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:45:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:45:32,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:45:32,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:45:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:32,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:45:32,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:32,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:32,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:32,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:32,793 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:45:32,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:45:32,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:32,833 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:45:32,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:45:32,987 INFO L354 Elim1Store]: treesize reduction 151, result has 18.4 percent of original size [2021-11-03 03:45:32,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 265 treesize of output 269 [2021-11-03 03:45:34,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-03 03:45:34,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [623103063] [2021-11-03 03:45:34,622 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:45:34,623 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:45:34,629 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:45:34,635 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:45:34,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:45:34,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,676 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:45:34,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:45:34,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-03 03:45:34,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-03 03:45:34,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,690 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,691 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:45:34,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:45:34,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-03 03:45:34,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:45:34,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 03:45:34,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:45:34,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,700 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:45:34,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:45:34,702 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,704 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:45:34,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:45:34,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-03 03:45:34,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:45:34,710 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-03 03:45:34,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-03 03:45:34,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 03:45:34,715 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 03:45:34,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:45:34,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,724 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:45:34,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 03:45:34,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:45:34,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:45:34,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:45:34,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:45:34,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-03 03:45:34,751 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@7ac189a at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.assertLhs(IncrementalPlicationChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.(ArrayIndexEqualityManager.java:92) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:571) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:444) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:45:34,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-03 03:45:34,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-03 03:45:34,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230923574] [2021-11-03 03:45:34,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:45:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:45:34,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:45:34,759 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-03 03:45:34,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:45:34,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:34,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:45:34,991 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@7ac189a at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:356) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:204) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:869) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:45:34,993 INFO L168 Benchmark]: Toolchain (without parser) took 5420.91 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 93.2 MB in the beginning and 58.8 MB in the end (delta: 34.4 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:34,994 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:45:34,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.72 ms. Allocated memory is still 136.3 MB. Free memory was 92.9 MB in the beginning and 101.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:34,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.68 ms. Allocated memory is still 136.3 MB. Free memory was 101.7 MB in the beginning and 100.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:45:34,995 INFO L168 Benchmark]: Boogie Preprocessor took 51.64 ms. Allocated memory is still 136.3 MB. Free memory was 100.2 MB in the beginning and 98.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:34,996 INFO L168 Benchmark]: RCFGBuilder took 744.91 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 76.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:34,996 INFO L168 Benchmark]: TraceAbstraction took 4014.02 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 75.9 MB in the beginning and 58.8 MB in the end (delta: 17.1 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:34,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.72 ms. Allocated memory is still 136.3 MB. Free memory was 92.9 MB in the beginning and 101.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.68 ms. Allocated memory is still 136.3 MB. Free memory was 101.7 MB in the beginning and 100.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.64 ms. Allocated memory is still 136.3 MB. Free memory was 100.2 MB in the beginning and 98.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 744.91 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 76.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4014.02 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 75.9 MB in the beginning and 58.8 MB in the end (delta: 17.1 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@7ac189a de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@7ac189a: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-03 03:45:35,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH --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 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:45:37,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:45:37,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:45:37,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:45:37,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:45:37,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:45:37,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:45:37,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:45:37,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:45:37,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:45:37,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:45:37,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:45:37,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:45:37,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:45:37,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:45:37,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:45:37,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:45:37,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:45:37,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:45:37,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:45:37,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:45:37,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:45:37,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:45:37,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:45:37,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:45:37,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:45:37,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:45:37,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:45:37,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:45:37,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:45:37,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:45:37,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:45:37,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:45:37,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:45:37,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:45:37,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:45:37,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:45:37,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:45:37,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:45:37,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:45:37,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:45:37,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:45:37,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:45:37,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:45:37,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:45:37,877 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:45:37,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:45:37,877 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:45:37,878 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:45:37,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:45:37,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:45:37,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:45:37,879 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:45:37,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:45:37,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:45:37,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:45:37,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:45:37,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:45:37,881 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:45:37,881 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:45:37,881 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:45:37,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:45:37,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:45:37,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:45:37,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:45:37,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:45:37,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:45:37,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:45:37,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:37,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:45:37,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:45:37,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:45:37,885 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:45:37,885 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:45:37,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:45:37,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:45:37,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:45:37,886 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-03 03:45:38,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:45:38,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:45:38,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:45:38,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:45:38,424 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:45:38,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-03 03:45:38,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/ddbbbea60/6a4053aae63f4df9907d54367e9a2171/FLAGa37f2c97c [2021-11-03 03:45:39,114 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:45:39,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-03 03:45:39,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/ddbbbea60/6a4053aae63f4df9907d54367e9a2171/FLAGa37f2c97c [2021-11-03 03:45:39,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/data/ddbbbea60/6a4053aae63f4df9907d54367e9a2171 [2021-11-03 03:45:39,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:45:39,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:45:39,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:39,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:45:39,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:45:39,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:39" (1/1) ... [2021-11-03 03:45:39,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ca7f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:39, skipping insertion in model container [2021-11-03 03:45:39,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:39" (1/1) ... [2021-11-03 03:45:39,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:45:39,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:45:40,050 WARN L228 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_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-03 03:45:40,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:40,088 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:45:40,156 WARN L228 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_cb5b3e1a-d592-468f-8b68-dc3645293ca3/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-03 03:45:40,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:40,209 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:45:40,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40 WrapperNode [2021-11-03 03:45:40,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:40,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:40,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:45:40,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:45:40,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:40,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:45:40,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:45:40,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:45:40,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:45:40,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:45:40,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:45:40,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:45:40,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (1/1) ... [2021-11-03 03:45:40,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:45:40,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:45:40,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:45:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:45:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:45:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:45:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:45:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:45:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:45:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:45:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:45:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:45:41,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:45:41,703 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-03 03:45:41,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:41 BoogieIcfgContainer [2021-11-03 03:45:41,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:45:41,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:45:41,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:45:41,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:45:41,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:39" (1/3) ... [2021-11-03 03:45:41,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8f3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:41, skipping insertion in model container [2021-11-03 03:45:41,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:40" (2/3) ... [2021-11-03 03:45:41,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8f3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:41, skipping insertion in model container [2021-11-03 03:45:41,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:41" (3/3) ... [2021-11-03 03:45:41,717 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-03 03:45:41,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:45:41,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:45:41,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:45:41,808 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:45:41,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:45:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-03 03:45:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:45:41,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:41,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:41,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash -15033972, now seen corresponding path program 1 times [2021-11-03 03:45:41,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:41,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068195634] [2021-11-03 03:45:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:41,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:41,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:41,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:41,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:45:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:42,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:45:42,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:42,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:42,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:42,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068195634] [2021-11-03 03:45:42,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068195634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:42,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:42,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:45:42,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824803665] [2021-11-03 03:45:42,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:45:42,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:42,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:45:42,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:45:42,218 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-03 03:45:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:42,258 INFO L93 Difference]: Finished difference Result 26 states and 37 transitions. [2021-11-03 03:45:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:45:42,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-11-03 03:45:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:42,268 INFO L225 Difference]: With dead ends: 26 [2021-11-03 03:45:42,282 INFO L226 Difference]: Without dead ends: 12 [2021-11-03 03:45:42,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:45:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-03 03:45:42,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-03 03:45:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-03 03:45:42,318 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 10 [2021-11-03 03:45:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:42,319 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-03 03:45:42,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-03 03:45:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-03 03:45:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:45:42,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:42,320 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:42,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:42,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:42,547 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:42,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:42,548 INFO L85 PathProgramCache]: Analyzing trace with hash -263268138, now seen corresponding path program 1 times [2021-11-03 03:45:42,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:42,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323636057] [2021-11-03 03:45:42,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:42,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:42,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:42,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:42,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:45:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:42,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 03:45:42,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:42,910 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-11-03 03:45:42,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:45:43,000 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-03 03:45:43,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:45:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:43,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:43,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:44,184 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:44,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 111 [2021-11-03 03:45:44,200 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:44,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 75 [2021-11-03 03:45:44,288 INFO L354 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2021-11-03 03:45:44,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 72 [2021-11-03 03:45:45,447 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:45,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 74 [2021-11-03 03:45:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:45,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:46,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:46,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323636057] [2021-11-03 03:45:46,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323636057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:46,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:46,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-03 03:45:46,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109907408] [2021-11-03 03:45:46,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:45:46,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:46,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:45:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:45:46,176 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:57,599 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-11-03 03:45:57,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 03:45:57,601 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 03:45:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:57,603 INFO L225 Difference]: With dead ends: 37 [2021-11-03 03:45:57,604 INFO L226 Difference]: Without dead ends: 35 [2021-11-03 03:45:57,605 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-03 03:45:57,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-03 03:45:57,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2021-11-03 03:45:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-11-03 03:45:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-11-03 03:45:57,614 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 10 [2021-11-03 03:45:57,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:57,615 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-11-03 03:45:57,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:57,615 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-03 03:45:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:45:57,616 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:57,616 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:57,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 03:45:57,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:57,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:45:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -263266216, now seen corresponding path program 1 times [2021-11-03 03:45:57,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:57,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034771376] [2021-11-03 03:45:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:57,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:57,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:57,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:57,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:45:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:58,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 03:45:58,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:58,081 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-03 03:45:58,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:58,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-03 03:45:58,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:58,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:45:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:58,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:45:58,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:45:58,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:45:58,510 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:58,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 76 [2021-11-03 03:45:58,523 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:58,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 46 [2021-11-03 03:45:58,551 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-03 03:45:58,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 27 [2021-11-03 03:45:58,653 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:45:58,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2021-11-03 03:45:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:58,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:58,943 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:58,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034771376] [2021-11-03 03:45:58,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034771376] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:58,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:58,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-03 03:45:58,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930314754] [2021-11-03 03:45:58,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:45:58,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:45:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:45:58,945 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:01,462 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2021-11-03 03:46:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:46:01,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 03:46:01,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:01,464 INFO L225 Difference]: With dead ends: 34 [2021-11-03 03:46:01,464 INFO L226 Difference]: Without dead ends: 27 [2021-11-03 03:46:01,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:46:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-03 03:46:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2021-11-03 03:46:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2021-11-03 03:46:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-03 03:46:01,470 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2021-11-03 03:46:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:01,470 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-03 03:46:01,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-03 03:46:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 03:46:01,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:01,471 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:01,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 03:46:01,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:46:01,672 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:01,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash -434920839, now seen corresponding path program 1 times [2021-11-03 03:46:01,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:01,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840572845] [2021-11-03 03:46:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:01,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:01,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:01,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:46:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:01,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-03 03:46:01,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:01,972 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:46:01,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:46:01,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:01,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:02,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:02,088 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-03 03:46:02,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-03 03:46:02,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:02,110 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:46:02,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-03 03:46:02,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:02,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-03 03:46:02,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:04,124 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:46:04,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 244 treesize of output 226 [2021-11-03 03:46:04,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:04,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-03 03:46:04,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:04,576 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:46:04,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 273 treesize of output 237 [2021-11-03 03:46:04,780 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-03 03:46:04,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 275 treesize of output 242 [2021-11-03 03:46:04,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:04,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 03:46:04,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:04,887 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-03 03:46:04,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 224 treesize of output 176 [2021-11-03 03:46:04,895 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:46:04,942 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-03 03:46:04,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 157 [2021-11-03 03:46:05,793 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:46:05,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 112 [2021-11-03 03:46:05,891 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-03 03:46:05,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 100 treesize of output 90 [2021-11-03 03:46:05,913 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:46:05,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 75 [2021-11-03 03:46:06,224 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:46:06,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 39 [2021-11-03 03:46:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:06,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:06,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:06,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:46:06,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:06,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:46:06,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:06,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:46:06,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:06,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:46:06,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:06,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:46:09,511 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_5 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_5 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv4 32))) (.cse8 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv8 32)))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_6)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_5)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_4) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_5))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_8) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_5))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_5))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:46:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-03 03:46:10,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:10,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840572845] [2021-11-03 03:46:10,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840572845] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:46:10,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1170465099] [2021-11-03 03:46:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:10,266 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:46:10,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:46:10,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-03 03:46:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:10,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-03 03:46:10,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:10,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:10,769 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:46:10,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:46:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:10,807 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:46:10,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:46:10,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:10,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:10,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:10,928 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:46:10,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-03 03:46:11,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:11,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-03 03:46:11,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:12,934 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:46:12,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 227 [2021-11-03 03:46:13,557 INFO L354 Elim1Store]: treesize reduction 266, result has 9.5 percent of original size [2021-11-03 03:46:13,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 283 treesize of output 262 [2021-11-03 03:46:13,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:13,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-03 03:46:13,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:13,927 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:46:13,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 234 treesize of output 198 [2021-11-03 03:46:13,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:13,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-03 03:46:13,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:14,043 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-03 03:46:14,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 177 [2021-11-03 03:46:14,049 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:46:14,091 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-03 03:46:14,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 158 [2021-11-03 03:46:14,837 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:46:14,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 101 [2021-11-03 03:46:14,884 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-03 03:46:14,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 75 [2021-11-03 03:46:14,905 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:46:14,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 54 [2021-11-03 03:46:15,191 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:46:15,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2021-11-03 03:46:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:15,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:15,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:15,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 360 [2021-11-03 03:46:15,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:15,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-11-03 03:46:15,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:15,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 440 [2021-11-03 03:46:15,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:15,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-03 03:46:15,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:15,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 477 [2021-11-03 03:46:17,839 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_7 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_7 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse8 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse6 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv4 32))) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv8 32)))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 ULTIMATE.start_main_~x~0) .cse6 v_DerPreprocessor_15) .cse7 v_DerPreprocessor_14)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse5 v_DerPreprocessor_13)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_12) .cse6 c_ULTIMATE.start_main_~m~0.base) .cse7 c_ULTIMATE.start_main_~head~0.base)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.base_7))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_16) .cse6 c_ULTIMATE.start_main_~m~0.offset) .cse7 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse4 c_ULTIMATE.start_main_~list~0.base (store (select .cse4 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.offset_7))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse2 .cse3 (bvadd (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (select .cse2 .cse3))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_7)))))) is different from false [2021-11-03 03:46:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-03 03:46:18,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1170465099] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:46:18,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701385403] [2021-11-03 03:46:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:18,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:46:18,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:46:18,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:46:18,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 03:46:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:18,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 03:46:18,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:18,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:18,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:18,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:18,534 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:46:18,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:46:18,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:18,585 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:46:18,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:46:18,663 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:46:18,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:46:19,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:19,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-03 03:46:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:22,123 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:46:22,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 267 treesize of output 249 [2021-11-03 03:46:23,383 INFO L354 Elim1Store]: treesize reduction 254, result has 9.9 percent of original size [2021-11-03 03:46:23,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 323 treesize of output 302 [2021-11-03 03:46:23,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:23,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-03 03:46:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:23,635 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-03 03:46:23,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 232 [2021-11-03 03:46:23,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:23,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-03 03:46:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:23,842 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-03 03:46:23,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 247 treesize of output 209 [2021-11-03 03:46:23,844 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:46:23,897 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-03 03:46:23,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 193 [2021-11-03 03:46:25,287 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:46:25,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 130 [2021-11-03 03:46:25,399 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-03 03:46:25,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 118 treesize of output 120 [2021-11-03 03:46:25,416 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:46:25,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 101 [2021-11-03 03:46:26,197 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:46:26,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 70 [2021-11-03 03:46:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:26,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:26,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:26,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-03 03:46:26,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:26,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 496 [2021-11-03 03:46:26,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:26,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 576 [2021-11-03 03:46:26,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:26,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 633 [2021-11-03 03:46:26,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:26,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 635 [2021-11-03 03:46:29,230 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_9 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_9 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv4 32))) (.cse8 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv8 32)))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_23) .cse8 v_DerPreprocessor_22)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_21)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_20) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_9))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_24) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_9))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse4 (select .cse2 .cse3))) (or (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_9)))) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-03 03:46:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-03 03:46:30,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701385403] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:46:30,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:46:30,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 30 [2021-11-03 03:46:30,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336066014] [2021-11-03 03:46:30,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-03 03:46:30,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:30,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-03 03:46:30,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=571, Unknown=3, NotChecked=156, Total=870 [2021-11-03 03:46:30,281 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 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) [2021-11-03 03:46:35,356 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse26 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse27 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_9 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_9 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv4 32))) (.cse10 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv8 32)))) (let ((.cse2 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_23) .cse10 v_DerPreprocessor_22)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_21)))) (.cse3 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_20) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse4 (select .cse2 .cse3)) (.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_24) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse6 (select .cse4 .cse5))) (or (bvslt (select (select (store .cse2 .cse3 (store .cse4 .cse5 (bvadd .cse6 (select (select .cse2 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_9)))) (not (bvsle .cse6 (_ bv100 32))))))))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_7 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_7 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse22 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse19 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse20 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv4 32))) (.cse21 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv8 32)))) (let ((.cse14 (let ((.cse24 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 ULTIMATE.start_main_~x~0) .cse20 v_DerPreprocessor_15) .cse21 v_DerPreprocessor_14)))) (store .cse24 c_ULTIMATE.start_main_~list~0.base (store (select .cse24 c_ULTIMATE.start_main_~list~0.base) .cse19 v_DerPreprocessor_13)))) (.cse15 (select (select (let ((.cse23 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_12) .cse20 c_ULTIMATE.start_main_~m~0.base) .cse21 c_ULTIMATE.start_main_~head~0.base)))) (store .cse23 c_ULTIMATE.start_main_~list~0.base (store (select .cse23 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.base_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse14 .cse15 (let ((.cse16 (select .cse14 .cse15)) (.cse17 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_16) .cse20 c_ULTIMATE.start_main_~m~0.offset) .cse21 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse18 c_ULTIMATE.start_main_~list~0.base (store (select .cse18 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.offset_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse16 .cse17 (bvadd (select (select .cse14 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (select .cse16 .cse17))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_7)))))) (= (select .cse0 .cse25) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse26 .cse25)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse26 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse27) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_5 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_5 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv4 32))) (.cse36 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv8 32)))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_7) .cse36 v_DerPreprocessor_6)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_5)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_4) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_8) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse28 (select .cse31 .cse32))) (or (not (bvsle .cse28 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_5))) (bvslt (select (select (store .cse29 .cse30 (store .cse31 .cse32 (bvadd (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse28))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse27))) is different from true [2021-11-03 03:46:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:48,294 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2021-11-03 03:46:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 03:46:48,294 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 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 12 [2021-11-03 03:46:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:48,295 INFO L225 Difference]: With dead ends: 53 [2021-11-03 03:46:48,296 INFO L226 Difference]: Without dead ends: 46 [2021-11-03 03:46:48,297 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=256, Invalid=1016, Unknown=4, NotChecked=284, Total=1560 [2021-11-03 03:46:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-03 03:46:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-11-03 03:46:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 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) [2021-11-03 03:46:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-11-03 03:46:48,306 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 12 [2021-11-03 03:46:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:48,306 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-11-03 03:46:48,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 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) [2021-11-03 03:46:48,307 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-11-03 03:46:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:46:48,308 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:48,308 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:48,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 03:46:48,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:48,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:46:48,923 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1483344674, now seen corresponding path program 1 times [2021-11-03 03:46:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:48,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058409991] [2021-11-03 03:46:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:48,924 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:48,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:48,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:48,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:46:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:49,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-03 03:46:49,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:49,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:49,313 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-03 03:46:49,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-03 03:46:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:49,323 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:46:49,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-03 03:46:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:49,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:49,418 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:46:49,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:46:49,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:49,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:46:49,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:49,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-03 03:46:49,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:51,750 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:46:51,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 227 [2021-11-03 03:46:51,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:51,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-03 03:46:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:52,214 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:46:52,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 274 treesize of output 238 [2021-11-03 03:46:52,403 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-03 03:46:52,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 276 treesize of output 243 [2021-11-03 03:46:52,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:52,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-03 03:46:52,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:46:52,506 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-03 03:46:52,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 225 treesize of output 177 [2021-11-03 03:46:52,507 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:46:52,552 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-03 03:46:52,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 158 [2021-11-03 03:46:53,371 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:46:53,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 112 [2021-11-03 03:46:53,499 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-03 03:46:53,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 100 treesize of output 90 [2021-11-03 03:46:53,526 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:46:53,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 75 [2021-11-03 03:46:53,962 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:46:53,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 39 [2021-11-03 03:46:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:46:54,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:54,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:54,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:46:54,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:54,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:46:54,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:54,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:46:54,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:54,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:46:54,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:54,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:46:57,212 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_31) .cse8 v_DerPreprocessor_30)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_29)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) is different from false [2021-11-03 03:46:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-03 03:46:59,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:59,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058409991] [2021-11-03 03:46:59,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058409991] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:46:59,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1364890888] [2021-11-03 03:46:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:59,617 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:59,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:46:59,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:46:59,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-03 03:47:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:00,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-03 03:47:00,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:00,162 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:47:00,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-03 03:47:00,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:00,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:47:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:00,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:47:00,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:00,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:00,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:00,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:00,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-03 03:47:00,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:02,846 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:47:02,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 223 [2021-11-03 03:47:03,549 INFO L354 Elim1Store]: treesize reduction 266, result has 9.5 percent of original size [2021-11-03 03:47:03,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 279 treesize of output 258 [2021-11-03 03:47:03,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:03,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-03 03:47:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:03,997 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:47:03,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 230 treesize of output 194 [2021-11-03 03:47:04,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:04,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-03 03:47:04,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:04,164 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-03 03:47:04,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 173 [2021-11-03 03:47:04,166 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:47:04,229 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-03 03:47:04,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 154 [2021-11-03 03:47:05,104 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:47:05,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 101 [2021-11-03 03:47:05,177 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-03 03:47:05,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 75 [2021-11-03 03:47:05,190 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:47:05,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 46 [2021-11-03 03:47:05,472 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:47:05,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2021-11-03 03:47:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:47:05,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:05,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:05,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-11-03 03:47:05,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:05,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 03:47:05,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:05,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 442 [2021-11-03 03:47:05,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:05,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 483 [2021-11-03 03:47:05,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:05,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 479 [2021-11-03 03:47:08,267 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse8 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse6 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse7 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse6 v_DerPreprocessor_39) .cse7 v_DerPreprocessor_38)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse5 v_DerPreprocessor_37)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse6 c_ULTIMATE.start_main_~m~0.base) .cse7 c_ULTIMATE.start_main_~head~0.base)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse6 c_ULTIMATE.start_main_~m~0.offset) .cse7 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse4 c_ULTIMATE.start_main_~list~0.base (store (select .cse4 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) is different from false [2021-11-03 03:47:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-03 03:47:09,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1364890888] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:47:09,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068806937] [2021-11-03 03:47:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:09,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:47:09,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:09,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:47:09,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 03:47:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:09,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 03:47:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:10,070 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:47:10,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:47:10,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:10,125 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:47:10,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:47:10,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:10,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:10,236 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:47:10,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:47:10,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:10,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:11,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:11,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-11-03 03:47:11,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:13,063 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:47:13,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 272 treesize of output 254 [2021-11-03 03:47:13,675 INFO L354 Elim1Store]: treesize reduction 278, result has 9.2 percent of original size [2021-11-03 03:47:13,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 310 treesize of output 289 [2021-11-03 03:47:13,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:13,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-11-03 03:47:13,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:14,023 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:47:14,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 261 treesize of output 225 [2021-11-03 03:47:14,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:14,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-11-03 03:47:14,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:14,227 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-03 03:47:14,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 252 treesize of output 214 [2021-11-03 03:47:14,235 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:47:14,285 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-03 03:47:14,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 198 [2021-11-03 03:47:15,816 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-03 03:47:15,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 130 [2021-11-03 03:47:15,943 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-03 03:47:15,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 118 treesize of output 120 [2021-11-03 03:47:15,957 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-03 03:47:15,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 101 [2021-11-03 03:47:16,804 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:47:16,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 70 [2021-11-03 03:47:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:47:16,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:17,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:17,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:47:17,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:17,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:47:17,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:17,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:47:17,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:17,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:47:17,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:17,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:47:19,883 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_47) .cse8 v_DerPreprocessor_46)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_45)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse4 (select .cse2 .cse3))) (or (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse4))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse4 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) is different from false [2021-11-03 03:47:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-03 03:47:22,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068806937] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:47:22,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:47:22,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 30 [2021-11-03 03:47:22,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032717427] [2021-11-03 03:47:22,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-03 03:47:22,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:22,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-03 03:47:22,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=571, Unknown=3, NotChecked=156, Total=870 [2021-11-03 03:47:22,914 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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) [2021-11-03 03:47:28,313 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse14 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse27 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse28 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse3 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_31) .cse10 v_DerPreprocessor_30)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_29)))) (.cse4 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse5 (select .cse3 .cse4)) (.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse5 .cse6))) (or (not (bvsle .cse2 (_ bv100 32))) (bvslt (select (select (store .cse3 .cse4 (store .cse5 .cse6 (bvadd .cse2 (select (select .cse3 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) (= (select .cse0 .cse14) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse24 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse21 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse22 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse23 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse15 (let ((.cse26 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse22 v_DerPreprocessor_47) .cse23 v_DerPreprocessor_46)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse21 v_DerPreprocessor_45)))) (.cse16 (select (select (let ((.cse25 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse22 c_ULTIMATE.start_main_~m~0.base) .cse23 c_ULTIMATE.start_main_~head~0.base)))) (store .cse25 c_ULTIMATE.start_main_~list~0.base (store (select .cse25 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse17 (select .cse15 .cse16)) (.cse18 (select (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse22 c_ULTIMATE.start_main_~m~0.offset) .cse23 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse20 c_ULTIMATE.start_main_~list~0.base (store (select .cse20 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse19 (select .cse17 .cse18))) (or (bvslt (select (select (store .cse15 .cse16 (store .cse17 .cse18 (bvadd (select (select .cse15 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse19))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse19 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) (= c_ULTIMATE.start_main_~m~0.base (select .cse27 .cse14)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse27 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse28) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse36 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_39) .cse36 v_DerPreprocessor_38)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_37)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse29 .cse30 (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse31 .cse32 (bvadd (select .cse31 .cse32) (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse28))) is different from false [2021-11-03 03:47:30,324 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse14 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse27 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse28 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse3 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_31) .cse10 v_DerPreprocessor_30)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_29)))) (.cse4 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse5 (select .cse3 .cse4)) (.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse5 .cse6))) (or (not (bvsle .cse2 (_ bv100 32))) (bvslt (select (select (store .cse3 .cse4 (store .cse5 .cse6 (bvadd .cse2 (select (select .cse3 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) (= (select .cse0 .cse14) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse24 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse21 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse22 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse23 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse15 (let ((.cse26 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse22 v_DerPreprocessor_47) .cse23 v_DerPreprocessor_46)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse21 v_DerPreprocessor_45)))) (.cse16 (select (select (let ((.cse25 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse22 c_ULTIMATE.start_main_~m~0.base) .cse23 c_ULTIMATE.start_main_~head~0.base)))) (store .cse25 c_ULTIMATE.start_main_~list~0.base (store (select .cse25 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse17 (select .cse15 .cse16)) (.cse18 (select (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse22 c_ULTIMATE.start_main_~m~0.offset) .cse23 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse20 c_ULTIMATE.start_main_~list~0.base (store (select .cse20 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse19 (select .cse17 .cse18))) (or (bvslt (select (select (store .cse15 .cse16 (store .cse17 .cse18 (bvadd (select (select .cse15 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse19))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse19 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) (= c_ULTIMATE.start_main_~m~0.base (select .cse27 .cse14)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse27 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse28) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse36 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_39) .cse36 v_DerPreprocessor_38)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_37)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse29 .cse30 (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse31 .cse32 (bvadd (select .cse31 .cse32) (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse28))) is different from true [2021-11-03 03:47:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:41,334 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2021-11-03 03:47:41,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 03:47:41,335 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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 14 [2021-11-03 03:47:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:41,336 INFO L225 Difference]: With dead ends: 62 [2021-11-03 03:47:41,336 INFO L226 Difference]: Without dead ends: 55 [2021-11-03 03:47:41,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=256, Invalid=1015, Unknown=5, NotChecked=284, Total=1560 [2021-11-03 03:47:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-03 03:47:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 32. [2021-11-03 03:47:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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) [2021-11-03 03:47:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-11-03 03:47:41,347 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 14 [2021-11-03 03:47:41,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:41,347 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-11-03 03:47:41,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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) [2021-11-03 03:47:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2021-11-03 03:47:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:47:41,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:41,349 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:41,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-03 03:47:41,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-03 03:47:41,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:41,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:41,961 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:41,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2110558044, now seen corresponding path program 2 times [2021-11-03 03:47:41,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:41,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495121987] [2021-11-03 03:47:41,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:47:41,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:41,963 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:41,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:47:42,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:47:42,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:47:42,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-03 03:47:42,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:42,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:42,625 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:47:42,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:47:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:42,683 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:47:42,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:47:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:42,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:42,807 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:47:42,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:47:42,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:42,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:47:43,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:43,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-03 03:47:43,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:43,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:43,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:47:45,549 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:47:45,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 273 treesize of output 255 [2021-11-03 03:47:45,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:45,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:47:45,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:45,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:45,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:47:46,059 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-03 03:47:46,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 284 [2021-11-03 03:47:46,276 INFO L354 Elim1Store]: treesize reduction 362, result has 8.6 percent of original size [2021-11-03 03:47:46,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 310 treesize of output 277 [2021-11-03 03:47:46,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:46,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-03 03:47:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:46,452 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-03 03:47:46,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 259 treesize of output 221 [2021-11-03 03:47:46,453 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:47:46,551 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-03 03:47:46,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 220 [2021-11-03 03:47:47,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:47,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-11-03 03:47:47,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:52,203 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-03 03:47:52,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 380 treesize of output 335 [2021-11-03 03:47:52,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:52,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 376 [2021-11-03 03:47:52,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:53,146 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-03 03:47:53,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 376 treesize of output 346 [2021-11-03 03:47:53,348 INFO L354 Elim1Store]: treesize reduction 362, result has 8.6 percent of original size [2021-11-03 03:47:53,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 359 treesize of output 326 [2021-11-03 03:47:53,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:53,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:47:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:53,540 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-03 03:47:53,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 270 [2021-11-03 03:47:53,542 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:47:53,619 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-11-03 03:47:53,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 246 treesize of output 262 [2021-11-03 03:48:02,012 INFO L354 Elim1Store]: treesize reduction 226, result has 0.4 percent of original size [2021-11-03 03:48:02,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 598 treesize of output 335 [2021-11-03 03:48:02,037 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-03 03:48:02,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 259 treesize of output 103 [2021-11-03 03:48:02,120 INFO L354 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2021-11-03 03:48:02,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 68 [2021-11-03 03:48:02,762 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:48:02,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 70 [2021-11-03 03:48:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:02,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:03,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:03,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:48:03,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:03,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:48:03,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:03,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:48:03,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:03,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:48:03,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:03,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:48:06,471 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_58) .cse8 v_DerPreprocessor_57)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_56)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:48:07,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:07,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1939 [2021-11-03 03:48:07,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:07,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2119 [2021-11-03 03:48:07,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:07,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2499 [2021-11-03 03:48:07,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:07,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2796 [2021-11-03 03:48:07,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:07,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2852 [2021-11-03 03:48:26,878 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse0 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_63) .cse12 v_DerPreprocessor_62)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_61))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse8 v_DerPreprocessor_58) .cse9 v_DerPreprocessor_57))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_56)))) (.cse1 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse4 (select .cse2 .cse3))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-03 03:48:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-03 03:48:48,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:48,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495121987] [2021-11-03 03:48:48,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495121987] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:48:48,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2035902962] [2021-11-03 03:48:48,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:48:48,535 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:48:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:48:48,536 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:48:48,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 03:48:49,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:48:49,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:48:49,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-03 03:48:49,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:49,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:48:49,343 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:48:49,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-03 03:48:49,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:48:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:48:49,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:48:49,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:49,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-03 03:48:49,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:49,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:51,091 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:48:51,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 247 treesize of output 229 [2021-11-03 03:48:51,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:51,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-11-03 03:48:51,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:51,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:51,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:51,533 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:48:51,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 276 treesize of output 240 [2021-11-03 03:48:51,722 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-03 03:48:51,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 284 treesize of output 251 [2021-11-03 03:48:51,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:51,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 03:48:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:51,854 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-03 03:48:51,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 233 treesize of output 185 [2021-11-03 03:48:51,855 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:48:51,960 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-03 03:48:51,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 158 treesize of output 181 [2021-11-03 03:48:54,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:54,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:48:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:54,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:54,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:56,835 INFO L354 Elim1Store]: treesize reduction 628, result has 6.4 percent of original size [2021-11-03 03:48:56,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 339 treesize of output 319 [2021-11-03 03:48:56,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:56,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:57,390 INFO L354 Elim1Store]: treesize reduction 132, result has 11.4 percent of original size [2021-11-03 03:48:57,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 293 treesize of output 257 [2021-11-03 03:48:57,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:57,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:57,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:48:57,880 INFO L354 Elim1Store]: treesize reduction 326, result has 9.2 percent of original size [2021-11-03 03:48:57,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 278 treesize of output 236 [2021-11-03 03:48:57,981 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-03 03:48:57,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 281 treesize of output 264 [2021-11-03 03:48:57,997 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-03 03:48:57,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 265 treesize of output 231 [2021-11-03 03:48:57,998 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:48:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:48:58,015 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-03 03:48:58,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 232 treesize of output 212 [2021-11-03 03:48:58,070 INFO L354 Elim1Store]: treesize reduction 46, result has 31.3 percent of original size [2021-11-03 03:48:58,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 213 treesize of output 219 [2021-11-03 03:49:02,370 INFO L354 Elim1Store]: treesize reduction 544, result has 10.1 percent of original size [2021-11-03 03:49:02,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 610 treesize of output 306 [2021-11-03 03:49:02,404 INFO L354 Elim1Store]: treesize reduction 250, result has 0.4 percent of original size [2021-11-03 03:49:02,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 505 treesize of output 205 [2021-11-03 03:49:02,441 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-03 03:49:02,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 101 [2021-11-03 03:49:02,502 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-03 03:49:02,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 61 treesize of output 43 [2021-11-03 03:49:02,504 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:49:02,920 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-03 03:49:02,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 38 [2021-11-03 03:49:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:49:02,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:02,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:02,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:49:03,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:03,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 03:49:03,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:03,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-03 03:49:03,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:03,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-03 03:49:03,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:03,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 544 [2021-11-03 03:49:03,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:03,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 546 [2021-11-03 03:49:07,619 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32))) (let ((.cse7 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse1 (let ((.cse9 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_71)))) (.cse2 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base)))) (store .cse8 c_ULTIMATE.start_main_~list~0.base (store (select .cse8 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse7))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse7))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:49:10,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:10,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1850 [2021-11-03 03:49:10,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:10,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2030 [2021-11-03 03:49:10,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:10,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2410 [2021-11-03 03:49:10,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:10,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2707 [2021-11-03 03:49:10,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:49:10,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2763 [2021-11-03 03:50:02,570 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse0 (let ((.cse15 (let ((.cse16 (let ((.cse17 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_78) .cse10 v_DerPreprocessor_77)))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_76))))) (store .cse16 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse16 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse15 c_ULTIMATE.start_main_~list~0.base (store (select .cse15 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_71)))) (.cse1 (select (select (let ((.cse12 (let ((.cse13 (let ((.cse14 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse13 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse13 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse8 c_ULTIMATE.start_main_~list~0.base (store (select .cse8 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse4 (select .cse2 .cse3))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse4 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) is different from false [2021-11-03 03:51:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-03 03:51:04,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2035902962] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:51:04,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108877173] [2021-11-03 03:51:04,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:51:04,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:51:04,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:51:04,533 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:51:04,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 03:51:06,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:51:06,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:51:06,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-03 03:51:06,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:51:06,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,106 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-03 03:51:06,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-03 03:51:06,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,118 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:51:06,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-03 03:51:06,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:51:06,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:51:06,213 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:51:06,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 03:51:06,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:06,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-11-03 03:51:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:06,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:51:09,538 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:51:09,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 254 treesize of output 236 [2021-11-03 03:51:09,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:09,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-11-03 03:51:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:09,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:51:09,954 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-03 03:51:09,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 289 treesize of output 265 [2021-11-03 03:51:10,155 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-03 03:51:10,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 291 treesize of output 258 [2021-11-03 03:51:10,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:10,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-03 03:51:10,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:10,274 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-03 03:51:10,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 240 treesize of output 192 [2021-11-03 03:51:10,276 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:51:10,363 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-03 03:51:10,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 165 treesize of output 188 [2021-11-03 03:51:13,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:13,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-11-03 03:51:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:18,398 WARN L207 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 149 DAG size of output: 38 [2021-11-03 03:51:18,399 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-03 03:51:18,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 362 treesize of output 317 [2021-11-03 03:51:18,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:18,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 358 [2021-11-03 03:51:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:19,265 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-03 03:51:19,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 358 treesize of output 328 [2021-11-03 03:51:19,528 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-03 03:51:19,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 345 treesize of output 312 [2021-11-03 03:51:19,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:19,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-03 03:51:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:51:19,699 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-03 03:51:19,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 294 treesize of output 246 [2021-11-03 03:51:19,701 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:51:19,788 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-11-03 03:51:19,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 219 treesize of output 235 [2021-11-03 03:51:42,721 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-03 03:51:42,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 372 treesize of output 166 [2021-11-03 03:51:42,842 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-03 03:51:42,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 120 [2021-11-03 03:51:42,870 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-03 03:51:42,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 131 treesize of output 93 [2021-11-03 03:51:43,435 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 03:51:43,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 39 [2021-11-03 03:51:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:43,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:51:43,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:43,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:51:43,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:43,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:51:43,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:43,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:51:43,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:43,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:51:43,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:43,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:51:46,822 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_89) .cse8 v_DerPreprocessor_88)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_23))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:51:48,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:48,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1940 [2021-11-03 03:51:48,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:48,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2120 [2021-11-03 03:51:48,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:48,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2500 [2021-11-03 03:51:48,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:48,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2797 [2021-11-03 03:51:48,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:48,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2853 [2021-11-03 03:52:10,954 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:52:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-03 03:52:34,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108877173] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:52:34,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:52:34,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 35 [2021-11-03 03:52:34,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923957890] [2021-11-03 03:52:34,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-03 03:52:34,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:52:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-03 03:52:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=657, Unknown=18, NotChecked=354, Total=1190 [2021-11-03 03:52:34,694 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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) [2021-11-03 03:52:40,916 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse20 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse42 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse43 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse21 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32)))) (and (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select .cse20 .cse21) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse35 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse30 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse31 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse28 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse33 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse34 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse22 (let ((.cse39 (let ((.cse40 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse33 v_DerPreprocessor_63) .cse34 v_DerPreprocessor_62)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_61))))) (store .cse40 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse40 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse30 v_DerPreprocessor_58) .cse31 v_DerPreprocessor_57))))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_56)))) (.cse23 (select (select (let ((.cse36 (let ((.cse37 (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse33 c_ULTIMATE.start_main_~m~0.base) .cse34 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse37 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse37 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse30 c_ULTIMATE.start_main_~m~0.base) .cse31 c_ULTIMATE.start_main_~head~0.base))))) (store .cse36 c_ULTIMATE.start_main_~list~0.base (store (select .cse36 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse24 (select .cse22 .cse23)) (.cse25 (select (select (let ((.cse27 (let ((.cse29 (let ((.cse32 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse33 c_ULTIMATE.start_main_~m~0.offset) .cse34 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse32 c_ULTIMATE.start_main_~list~0.base (store (select .cse32 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse29 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse29 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse30 c_ULTIMATE.start_main_~m~0.offset) .cse31 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse26 (select .cse24 .cse25))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse22 .cse23 (store .cse24 .cse25 (bvadd .cse26 (select (select .cse22 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse26 (_ bv100 32))))))))) (= (select .cse20 .cse42) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse43 .cse42)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse43 .cse21) c_ULTIMATE.start_main_~head~0.base) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse55 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse50 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse53 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse54 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse44 (let ((.cse59 (let ((.cse60 (let ((.cse61 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse53 v_DerPreprocessor_78) .cse54 v_DerPreprocessor_77)))) (store .cse61 c_ULTIMATE.start_main_~list~0.base (store (select .cse61 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_76))))) (store .cse60 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse60 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse59 c_ULTIMATE.start_main_~list~0.base (store (select .cse59 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_71)))) (.cse45 (select (select (let ((.cse56 (let ((.cse57 (let ((.cse58 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse53 c_ULTIMATE.start_main_~m~0.base) .cse54 c_ULTIMATE.start_main_~head~0.base)))) (store .cse58 c_ULTIMATE.start_main_~list~0.base (store (select .cse58 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse57 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse57 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse56 c_ULTIMATE.start_main_~list~0.base (store (select .cse56 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse46 (select .cse44 .cse45)) (.cse47 (select (select (let ((.cse49 (let ((.cse51 (let ((.cse52 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse53 c_ULTIMATE.start_main_~m~0.offset) .cse54 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse52 c_ULTIMATE.start_main_~list~0.base (store (select .cse52 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse51 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse51 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse49 c_ULTIMATE.start_main_~list~0.base (store (select .cse49 c_ULTIMATE.start_main_~list~0.base) .cse50 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse48 (select .cse46 .cse47))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse44 .cse45 (store .cse46 .cse47 (bvadd .cse48 (select (select .cse44 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse48 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) is different from false [2021-11-03 03:52:42,931 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse20 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse42 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse43 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse21 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32)))) (and (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select .cse20 .cse21) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse35 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse30 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse31 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse28 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse33 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse34 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse22 (let ((.cse39 (let ((.cse40 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse33 v_DerPreprocessor_63) .cse34 v_DerPreprocessor_62)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_61))))) (store .cse40 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse40 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse30 v_DerPreprocessor_58) .cse31 v_DerPreprocessor_57))))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_56)))) (.cse23 (select (select (let ((.cse36 (let ((.cse37 (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse33 c_ULTIMATE.start_main_~m~0.base) .cse34 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse37 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse37 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse30 c_ULTIMATE.start_main_~m~0.base) .cse31 c_ULTIMATE.start_main_~head~0.base))))) (store .cse36 c_ULTIMATE.start_main_~list~0.base (store (select .cse36 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse24 (select .cse22 .cse23)) (.cse25 (select (select (let ((.cse27 (let ((.cse29 (let ((.cse32 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse33 c_ULTIMATE.start_main_~m~0.offset) .cse34 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse32 c_ULTIMATE.start_main_~list~0.base (store (select .cse32 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse29 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse29 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse30 c_ULTIMATE.start_main_~m~0.offset) .cse31 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse26 (select .cse24 .cse25))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse22 .cse23 (store .cse24 .cse25 (bvadd .cse26 (select (select .cse22 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse26 (_ bv100 32))))))))) (= (select .cse20 .cse42) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse43 .cse42)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse43 .cse21) c_ULTIMATE.start_main_~head~0.base) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse55 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse50 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse53 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse54 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse44 (let ((.cse59 (let ((.cse60 (let ((.cse61 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse53 v_DerPreprocessor_78) .cse54 v_DerPreprocessor_77)))) (store .cse61 c_ULTIMATE.start_main_~list~0.base (store (select .cse61 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_76))))) (store .cse60 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse60 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse59 c_ULTIMATE.start_main_~list~0.base (store (select .cse59 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_71)))) (.cse45 (select (select (let ((.cse56 (let ((.cse57 (let ((.cse58 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse53 c_ULTIMATE.start_main_~m~0.base) .cse54 c_ULTIMATE.start_main_~head~0.base)))) (store .cse58 c_ULTIMATE.start_main_~list~0.base (store (select .cse58 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse57 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse57 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse56 c_ULTIMATE.start_main_~list~0.base (store (select .cse56 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse46 (select .cse44 .cse45)) (.cse47 (select (select (let ((.cse49 (let ((.cse51 (let ((.cse52 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse53 c_ULTIMATE.start_main_~m~0.offset) .cse54 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse52 c_ULTIMATE.start_main_~list~0.base (store (select .cse52 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse51 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse51 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse49 c_ULTIMATE.start_main_~list~0.base (store (select .cse49 c_ULTIMATE.start_main_~list~0.base) .cse50 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse48 (select .cse46 .cse47))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse44 .cse45 (store .cse46 .cse47 (bvadd .cse48 (select (select .cse44 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse48 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) is different from true [2021-11-03 03:52:45,292 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse43 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse42 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~list~0.base) .cse43)) (.cse2 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~list~0.base) .cse43))) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse0 (select |c_#memory_$Pointer$.base| .cse2)) (.cse28 (bvadd .cse42 (_ bv8 32))) (.cse31 (select |c_#memory_$Pointer$.offset| .cse2)) (.cse1 (bvadd .cse42 (_ bv4 32)))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~m~0.base) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| .cse2)) (_ bv1 1))) (not (= c_ULTIMATE.start_main_~head~0.base .cse2)) (= (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base) .cse3) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse10 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17))) (let ((.cse5 (let ((.cse15 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_58) .cse12 v_DerPreprocessor_57)))) (store .cse15 c_ULTIMATE.start_main_~list~0.base (store (select .cse15 c_ULTIMATE.start_main_~list~0.base) .cse10 v_DerPreprocessor_56)))) (.cse6 (select (select (let ((.cse14 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse7 (select .cse5 .cse6)) (.cse8 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse4 (select .cse7 .cse8))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (not (bvsle .cse4 (_ bv100 32))) (bvslt (select (select (store .cse5 .cse6 (store .cse7 .cse8 (bvadd .cse4 (select (select .cse5 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (not (= c_ULTIMATE.start_main_~m~0.base .cse2)) (= c_ULTIMATE.start_main_~m~0.base (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base) .cse3)) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (let ((.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse22 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse23 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse24 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23))) (let ((.cse17 (let ((.cse27 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) .cse23 v_DerPreprocessor_89) .cse24 v_DerPreprocessor_88)))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse22 v_DerPreprocessor_87)))) (.cse18 (select (select (let ((.cse26 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse23 c_ULTIMATE.start_main_~m~0.base) .cse24 c_ULTIMATE.start_main_~head~0.base)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse19 (select .cse17 .cse18)) (.cse20 (select (select (let ((.cse21 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse23 c_ULTIMATE.start_main_~m~0.offset) .cse24 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse21 c_ULTIMATE.start_main_~list~0.base (store (select .cse21 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse16 (select .cse19 .cse20))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_23))) (not (bvsle .cse16 (_ bv100 32))) (bvslt (select (select (store .cse17 .cse18 (store .cse19 .cse20 (bvadd (select (select .cse17 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse16))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= c_ULTIMATE.start_main_~head~0.base (select .cse0 .cse28)) (exists ((v_arrayElimCell_236 (_ BitVec 1))) (let ((.cse29 (bvneg (bvneg v_arrayElimCell_236)))) (and (= (_ bv0 1) (bvadd (_ bv1 1) .cse29)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base)) .cse29))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (exists ((v_arrayElimCell_237 (_ BitVec 1))) (let ((.cse30 (bvneg v_arrayElimCell_237))) (and (= (_ bv0 1) (bvadd (select |c_#valid| c_ULTIMATE.start_main_~m~0.base) .cse30)) (= (_ bv0 1) (bvadd (_ bv1 1) .cse30))))) (= c_ULTIMATE.start_main_~head~0.offset (select .cse31 .cse28)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (select .cse31 .cse1)) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32))) (let ((.cse39 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse38 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse33 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse38 v_DerPreprocessor_71)))) (.cse34 (select (select (let ((.cse40 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base)))) (store .cse40 c_ULTIMATE.start_main_~list~0.base (store (select .cse40 c_ULTIMATE.start_main_~list~0.base) .cse38 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse35 (select .cse33 .cse34)) (.cse36 (select (select (let ((.cse37 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset)))) (store .cse37 c_ULTIMATE.start_main_~list~0.base (store (select .cse37 c_ULTIMATE.start_main_~list~0.base) .cse38 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse32 (select .cse35 .cse36))) (or (not (bvsle .cse32 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))) (bvslt (select (select (store .cse33 .cse34 (store .cse35 .cse36 (bvadd .cse32 (select (select .cse33 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))))))) is different from false [2021-11-03 03:53:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:08,113 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2021-11-03 03:53:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 03:53:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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 14 [2021-11-03 03:53:08,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:08,114 INFO L225 Difference]: With dead ends: 67 [2021-11-03 03:53:08,114 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 03:53:08,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 64.2s TimeCoverageRelationStatistics Valid=249, Invalid=1022, Unknown=21, NotChecked=600, Total=1892 [2021-11-03 03:53:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 03:53:08,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2021-11-03 03:53:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.457142857142857) internal successors, (51), 35 states have internal predecessors, (51), 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) [2021-11-03 03:53:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-11-03 03:53:08,127 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 14 [2021-11-03 03:53:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:08,127 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-11-03 03:53:08,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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) [2021-11-03 03:53:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-11-03 03:53:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:53:08,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:08,129 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:08,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:08,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:08,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:08,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:53:08,743 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:08,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash -857850716, now seen corresponding path program 1 times [2021-11-03 03:53:08,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:08,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349876323] [2021-11-03 03:53:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:08,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:08,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:08,745 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:08,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 03:53:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:09,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 03:53:09,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:09,569 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-03 03:53:09,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 63 [2021-11-03 03:53:09,609 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-03 03:53:09,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-11-03 03:53:09,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 65 [2021-11-03 03:53:09,680 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-03 03:53:09,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 46 [2021-11-03 03:53:09,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:09,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:53:10,099 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-03 03:53:10,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 199 treesize of output 144 [2021-11-03 03:53:10,167 INFO L354 Elim1Store]: treesize reduction 152, result has 6.7 percent of original size [2021-11-03 03:53:10,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 154 treesize of output 120 [2021-11-03 03:53:10,234 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-03 03:53:10,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 90 [2021-11-03 03:53:12,633 INFO L354 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2021-11-03 03:53:12,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 65 [2021-11-03 03:53:12,681 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-11-03 03:53:12,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2021-11-03 03:53:12,688 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 03:53:12,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 14 [2021-11-03 03:53:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:12,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:16,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:16,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-03 03:53:16,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:16,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 03:53:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:27,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349876323] [2021-11-03 03:53:27,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349876323] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2036141534] [2021-11-03 03:53:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:27,957 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:27,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:53:27,962 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:53:27,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-03 03:53:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:28,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 03:53:28,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:28,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:28,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 84 [2021-11-03 03:53:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:28,867 INFO L354 Elim1Store]: treesize reduction 35, result has 27.1 percent of original size [2021-11-03 03:53:28,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 63 [2021-11-03 03:53:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:28,878 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 03:53:28,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 50 [2021-11-03 03:53:28,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2021-11-03 03:53:28,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:28,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:53:29,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:53:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:29,505 INFO L354 Elim1Store]: treesize reduction 153, result has 10.5 percent of original size [2021-11-03 03:53:29,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 135 [2021-11-03 03:53:29,597 INFO L354 Elim1Store]: treesize reduction 223, result has 5.9 percent of original size [2021-11-03 03:53:29,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 124 treesize of output 99 [2021-11-03 03:53:29,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:53:29,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:29,677 INFO L354 Elim1Store]: treesize reduction 133, result has 13.1 percent of original size [2021-11-03 03:53:29,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 79 [2021-11-03 03:53:40,201 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 49 [2021-11-03 03:53:40,253 INFO L354 Elim1Store]: treesize reduction 29, result has 21.6 percent of original size [2021-11-03 03:53:40,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 33 [2021-11-03 03:53:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:40,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:40,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-03 03:53:40,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 03:53:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:48,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2036141534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:48,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286663999] [2021-11-03 03:53:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:48,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:48,751 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:53:48,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 03:53:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:49,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 03:53:49,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:49,631 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:53:49,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:53:49,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:49,732 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:53:49,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:53:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:49,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:53:49,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:49,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:53:49,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-03 03:53:50,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:53:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:50,770 INFO L354 Elim1Store]: treesize reduction 98, result has 14.8 percent of original size [2021-11-03 03:53:50,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 137 [2021-11-03 03:53:50,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:53:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:50,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2021-11-03 03:53:50,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2021-11-03 03:53:57,985 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-11-03 03:53:57,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 56 [2021-11-03 03:53:58,019 INFO L354 Elim1Store]: treesize reduction 58, result has 4.9 percent of original size [2021-11-03 03:53:58,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 24 [2021-11-03 03:53:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:58,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:04,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:54:04,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-03 03:54:04,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:54:04,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 03:54:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:13,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286663999] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:13,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:54:13,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 7, 9, 9] total 26 [2021-11-03 03:54:13,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357299658] [2021-11-03 03:54:13,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-03 03:54:13,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:13,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-03 03:54:13,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=520, Unknown=15, NotChecked=0, Total=650 [2021-11-03 03:54:13,700 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 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) [2021-11-03 03:54:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:39,486 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2021-11-03 03:54:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 03:54:39,487 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 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 15 [2021-11-03 03:54:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:39,489 INFO L225 Difference]: With dead ends: 77 [2021-11-03 03:54:39,489 INFO L226 Difference]: Without dead ends: 67 [2021-11-03 03:54:39,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 67.0s TimeCoverageRelationStatistics Valid=268, Invalid=1049, Unknown=15, NotChecked=0, Total=1332 [2021-11-03 03:54:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-03 03:54:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2021-11-03 03:54:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 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) [2021-11-03 03:54:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2021-11-03 03:54:39,504 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 15 [2021-11-03 03:54:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:39,505 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2021-11-03 03:54:39,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 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) [2021-11-03 03:54:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2021-11-03 03:54:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:54:39,506 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:39,506 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:39,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:39,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:39,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-03 03:54:40,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:40,107 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:54:40,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash -856003674, now seen corresponding path program 1 times [2021-11-03 03:54:40,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:40,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704201780] [2021-11-03 03:54:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:40,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:40,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:40,110 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:40,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 03:54:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:40,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:54:40,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:41,053 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-03 03:54:41,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:54:41,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:41,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:54:41,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2021-11-03 03:54:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:41,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:54:41,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:41,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:54:41,645 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-03 03:54:41,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 192 treesize of output 143 [2021-11-03 03:54:41,662 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:54:41,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 92 [2021-11-03 03:54:41,702 INFO L354 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2021-11-03 03:54:41,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 68 [2021-11-03 03:54:44,600 INFO L354 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2021-11-03 03:54:44,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 113 [2021-11-03 03:54:44,659 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-11-03 03:54:44,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 61 [2021-11-03 03:54:44,693 INFO L354 Elim1Store]: treesize reduction 40, result has 14.9 percent of original size [2021-11-03 03:54:44,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 30 [2021-11-03 03:54:44,862 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:54:44,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2021-11-03 03:54:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:44,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:49,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:54:49,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 601 [2021-11-03 03:54:49,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:54:49,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 762 [2021-11-03 03:55:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:00,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:00,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704201780] [2021-11-03 03:55:00,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704201780] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:00,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [116973693] [2021-11-03 03:55:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:00,872 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:55:00,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:55:00,880 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:55:00,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-03 03:55:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:01,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-03 03:55:01,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:01,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:01,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:55:01,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-03 03:55:01,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:01,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:55:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:01,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:55:01,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:01,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:55:02,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:02,639 INFO L354 Elim1Store]: treesize reduction 147, result has 14.0 percent of original size [2021-11-03 03:55:02,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 184 treesize of output 144 [2021-11-03 03:55:02,734 INFO L354 Elim1Store]: treesize reduction 249, result has 5.3 percent of original size [2021-11-03 03:55:02,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 139 treesize of output 114 [2021-11-03 03:55:02,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:02,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:02,831 INFO L354 Elim1Store]: treesize reduction 151, result has 11.7 percent of original size [2021-11-03 03:55:02,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 88 [2021-11-03 03:55:05,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:05,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 81 [2021-11-03 03:55:05,942 INFO L354 Elim1Store]: treesize reduction 52, result has 11.9 percent of original size [2021-11-03 03:55:05,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 46 [2021-11-03 03:55:05,950 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:05,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 21 [2021-11-03 03:55:06,403 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 03:55:06,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 24 [2021-11-03 03:55:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:06,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:15,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:15,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-11-03 03:55:15,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:15,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1010 [2021-11-03 03:55:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:28,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [116973693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:28,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86919759] [2021-11-03 03:55:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:28,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:55:28,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:55:28,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:55:28,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-03 03:55:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:29,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 03:55:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:29,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:29,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:55:29,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:29,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:55:29,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-03 03:55:29,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:29,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-03 03:55:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:29,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-03 03:55:29,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:29,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:30,035 INFO L354 Elim1Store]: treesize reduction 98, result has 14.8 percent of original size [2021-11-03 03:55:30,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 137 [2021-11-03 03:55:30,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:30,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:55:30,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2021-11-03 03:55:30,075 INFO L354 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2021-11-03 03:55:30,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 64 [2021-11-03 03:55:33,996 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:33,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 03:55:34,034 INFO L354 Elim1Store]: treesize reduction 52, result has 11.9 percent of original size [2021-11-03 03:55:34,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 50 [2021-11-03 03:55:34,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:34,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 51 [2021-11-03 03:55:34,900 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:55:34,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 27 [2021-11-03 03:55:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:34,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:42,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:42,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-11-03 03:55:42,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:42,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1010 [2021-11-03 03:55:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:53,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86919759] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:53,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:55:53,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 10, 10, 12] total 37 [2021-11-03 03:55:53,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475734741] [2021-11-03 03:55:53,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-03 03:55:53,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:53,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-03 03:55:53,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1012, Unknown=22, NotChecked=0, Total=1332 [2021-11-03 03:55:53,038 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 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) [2021-11-03 03:56:10,382 WARN L207 SmtUtils]: Spent 11.20 s on a formula simplification that was a NOOP. DAG size: 123 [2021-11-03 03:57:26,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:26,828 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2021-11-03 03:57:26,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-03 03:57:26,829 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 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 15 [2021-11-03 03:57:26,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:26,830 INFO L225 Difference]: With dead ends: 86 [2021-11-03 03:57:26,830 INFO L226 Difference]: Without dead ends: 83 [2021-11-03 03:57:26,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=768, Invalid=2290, Unknown=22, NotChecked=0, Total=3080 [2021-11-03 03:57:26,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-03 03:57:26,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 62. [2021-11-03 03:57:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 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) [2021-11-03 03:57:26,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2021-11-03 03:57:26,850 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 15 [2021-11-03 03:57:26,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:26,851 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2021-11-03 03:57:26,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 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) [2021-11-03 03:57:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2021-11-03 03:57:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:57:26,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:26,852 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:26,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:27,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:27,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:27,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:27,453 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:57:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1250877726, now seen corresponding path program 2 times [2021-11-03 03:57:27,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:27,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110428054] [2021-11-03 03:57:27,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:57:27,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:27,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:27,457 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:27,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-03 03:57:28,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:57:28,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:57:28,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:57:28,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:28,512 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-03 03:57:28,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 81 [2021-11-03 03:57:28,562 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-03 03:57:28,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 81 [2021-11-03 03:57:30,394 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-03 03:57:30,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 71 [2021-11-03 03:57:30,429 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-03 03:57:30,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 65 [2021-11-03 03:57:30,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2021-11-03 03:57:30,438 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:57:30,741 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:57:30,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 50 [2021-11-03 03:57:30,751 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:57:30,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 29 [2021-11-03 03:57:30,761 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:57:30,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2021-11-03 03:57:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 03:57:30,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 03:57:31,070 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:31,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110428054] [2021-11-03 03:57:31,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110428054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:31,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:31,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 03:57:31,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236660273] [2021-11-03 03:57:31,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:57:31,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:31,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:57:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:57:31,072 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-11-03 03:57:33,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:33,606 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2021-11-03 03:57:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:33,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 15 [2021-11-03 03:57:33,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:33,610 INFO L225 Difference]: With dead ends: 78 [2021-11-03 03:57:33,610 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 03:57:33,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:57:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 03:57:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-03 03:57:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 59 states have internal predecessors, (80), 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) [2021-11-03 03:57:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2021-11-03 03:57:33,633 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 15 [2021-11-03 03:57:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:33,633 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2021-11-03 03:57:33,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-11-03 03:57:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2021-11-03 03:57:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 03:57:33,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:33,635 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:33,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:33,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:33,851 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:57:33,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash -402400127, now seen corresponding path program 2 times [2021-11-03 03:57:33,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:33,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920170053] [2021-11-03 03:57:33,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:57:33,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:33,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:33,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:33,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb5b3e1a-d592-468f-8b68-dc3645293ca3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-03 03:57:34,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:57:34,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:57:34,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-03 03:57:34,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:34,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:57:34,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:34,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 03:57:34,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:34,951 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-03 03:57:34,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-03 03:57:34,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:35,039 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-03 03:57:35,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-03 03:57:35,173 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:57:35,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-03 03:57:35,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:35,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 03:57:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:35,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:35,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:57:37,011 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-03 03:57:37,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 248 treesize of output 230 [2021-11-03 03:57:37,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:37,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-11-03 03:57:37,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:37,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:37,033 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:57:37,427 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-03 03:57:37,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 277 treesize of output 241 [2021-11-03 03:57:37,685 INFO L354 Elim1Store]: treesize reduction 350, result has 8.9 percent of original size [2021-11-03 03:57:37,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 285 treesize of output 252 [2021-11-03 03:57:37,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:37,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-03 03:57:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:37,814 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-03 03:57:37,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 234 treesize of output 186 [2021-11-03 03:57:37,815 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:57:37,912 INFO L354 Elim1Store]: treesize reduction 54, result has 40.7 percent of original size [2021-11-03 03:57:37,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 159 treesize of output 182 [2021-11-03 03:57:38,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:38,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-11-03 03:57:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:44,723 WARN L207 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 149 DAG size of output: 38 [2021-11-03 03:57:44,724 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-03 03:57:44,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 361 treesize of output 316 [2021-11-03 03:57:44,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:44,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-03 03:57:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:45,643 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-03 03:57:45,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 357 treesize of output 327 [2021-11-03 03:57:45,861 INFO L354 Elim1Store]: treesize reduction 350, result has 8.9 percent of original size [2021-11-03 03:57:45,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 340 treesize of output 307 [2021-11-03 03:57:45,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:45,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-11-03 03:57:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:46,014 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-03 03:57:46,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 289 treesize of output 241 [2021-11-03 03:57:46,017 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:57:46,107 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-03 03:57:46,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 214 treesize of output 230 [2021-11-03 03:57:52,055 INFO L354 Elim1Store]: treesize reduction 238, result has 0.4 percent of original size [2021-11-03 03:57:52,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 450 treesize of output 224 [2021-11-03 03:57:52,083 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-03 03:57:52,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 176 treesize of output 102 [2021-11-03 03:57:52,119 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-03 03:57:52,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 30 [2021-11-03 03:57:52,319 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:57:52,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2021-11-03 03:57:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:57:52,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:52,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:52,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-03 03:57:52,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:52,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-03 03:57:52,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:52,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-03 03:57:52,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:52,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-03 03:57:52,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:52,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-03 03:57:55,733 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_33 (_ BitVec 32)) (v_DerPreprocessor_114 (_ BitVec 32)) (v_DerPreprocessor_115 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_33 (_ BitVec 32)) (v_DerPreprocessor_116 (_ BitVec 32)) (v_DerPreprocessor_117 (_ BitVec 32)) (v_DerPreprocessor_118 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_33))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_117) .cse8 v_DerPreprocessor_116)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_115)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_114) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_33))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_118) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_33))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_33))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-03 03:57:56,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:56,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1938 [2021-11-03 03:57:56,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:56,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2118 [2021-11-03 03:57:56,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:56,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2498 [2021-11-03 03:57:56,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:56,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2795 [2021-11-03 03:57:56,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:56,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2851 [2021-11-03 03:58:20,272 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_121 (_ BitVec 32)) (v_DerPreprocessor_122 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_123 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_33 (_ BitVec 32)) (v_DerPreprocessor_114 (_ BitVec 32)) (v_DerPreprocessor_115 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_33 (_ BitVec 32)) (v_DerPreprocessor_116 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_34 (_ BitVec 32)) (v_DerPreprocessor_117 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_34 (_ BitVec 32)) (v_DerPreprocessor_120 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_42 (_ BitVec 32)) (v_DerPreprocessor_118 (_ BitVec 32)) (v_DerPreprocessor_119 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_34)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_34))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_122) .cse12 v_DerPreprocessor_121)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_120))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_ULTIMATE.start_main_~x~0_42) .cse8 v_DerPreprocessor_117) .cse9 v_DerPreprocessor_116))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_115)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 v_DerPreprocessor_119) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_34))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_114) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_33))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 v_DerPreprocessor_123) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_34))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_118) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_33))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_34))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_34 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_33))))))))) is different from false