./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-13 02:28:16,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:16,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:16,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:16,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:16,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:16,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:16,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:16,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:16,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:16,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:16,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:16,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:16,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:16,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:16,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:16,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:16,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:16,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:16,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:16,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:16,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:16,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:16,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:16,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:16,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:16,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:16,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:16,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:16,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:16,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:16,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:16,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:16,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:16,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:16,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:16,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:16,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:16,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:16,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:16,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:16,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:28:16,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:16,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:16,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:16,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:16,219 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:16,219 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:16,220 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:16,220 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:28:16,220 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:16,220 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:16,228 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:28:16,228 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:28:16,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:16,229 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:28:16,229 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:28:16,229 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:28:16,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:16,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:28:16,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:28:16,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:28:16,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:16,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:16,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:16,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:16,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:16,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:28:16,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:16,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:16,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:16,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:16,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:16,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:16,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:16,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:16,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:16,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:28:16,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:28:16,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:16,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:16,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:16,238 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-13 02:28:16,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:16,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:16,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:16,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:16,527 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:16,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-13 02:28:16,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/98d70af60/fbe63c40fefd422bb138fb941e32dc26/FLAGd65de2879 [2021-11-13 02:28:17,167 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:17,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-13 02:28:17,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/98d70af60/fbe63c40fefd422bb138fb941e32dc26/FLAGd65de2879 [2021-11-13 02:28:17,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/98d70af60/fbe63c40fefd422bb138fb941e32dc26 [2021-11-13 02:28:17,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:17,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:17,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:17,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:17,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:17,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:17,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256425c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17, skipping insertion in model container [2021-11-13 02:28:17,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:17,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:17,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:17,876 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-13 02:28:17,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:17,890 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:28:17,937 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-13 02:28:17,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:17,968 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:28:17,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17 WrapperNode [2021-11-13 02:28:17,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:17,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:17,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:28:17,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:28:17,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:17,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:18,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:28:18,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:28:18,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:28:18,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:28:18,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:28:18,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:28:18,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:28:18,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (1/1) ... [2021-11-13 02:28:18,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:18,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:28:18,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:28:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 02:28:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 02:28:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:28:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:28:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:28:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:28:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:28:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:28:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:28:18,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:18,590 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 02:28:18,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:18 BoogieIcfgContainer [2021-11-13 02:28:18,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:18,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:18,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:18,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:17" (1/3) ... [2021-11-13 02:28:18,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46464b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:18, skipping insertion in model container [2021-11-13 02:28:18,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:17" (2/3) ... [2021-11-13 02:28:18,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46464b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:18, skipping insertion in model container [2021-11-13 02:28:18,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:18" (3/3) ... [2021-11-13 02:28:18,602 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-13 02:28:18,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:18,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:28:18,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:18,673 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 [2021-11-13 02:28:18,673 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:28:18,687 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) [2021-11-13 02:28:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 02:28:18,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:18,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 02:28:18,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:18,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1727782104, now seen corresponding path program 1 times [2021-11-13 02:28:18,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:18,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37007007] [2021-11-13 02:28:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:18,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:18,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:18,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37007007] [2021-11-13 02:28:18,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37007007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:18,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:18,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 02:28:18,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684845338] [2021-11-13 02:28:18,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:18,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:28:18,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:18,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:28:18,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:28:18,910 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) [2021-11-13 02:28:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:18,950 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-13 02:28:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:28:18,953 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 [2021-11-13 02:28:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:18,961 INFO L225 Difference]: With dead ends: 15 [2021-11-13 02:28:18,961 INFO L226 Difference]: Without dead ends: 8 [2021-11-13 02:28:18,964 INFO L932 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 [2021-11-13 02:28:18,968 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.16ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:18,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 4 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 26.16ms Time] [2021-11-13 02:28:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-13 02:28:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-13 02:28:18,994 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) [2021-11-13 02:28:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-13 02:28:18,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-13 02:28:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:18,996 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-13 02:28:18,996 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) [2021-11-13 02:28:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-13 02:28:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 02:28:18,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:18,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:18,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:28:18,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1888775881, now seen corresponding path program 1 times [2021-11-13 02:28:18,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:18,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574189308] [2021-11-13 02:28:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:19,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:19,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:19,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574189308] [2021-11-13 02:28:19,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574189308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:19,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:19,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 02:28:19,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451015984] [2021-11-13 02:28:19,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:19,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:28:19,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:28:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:19,488 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) [2021-11-13 02:28:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:19,672 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-13 02:28:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:19,673 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 [2021-11-13 02:28:19,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:19,674 INFO L225 Difference]: With dead ends: 15 [2021-11-13 02:28:19,674 INFO L226 Difference]: Without dead ends: 13 [2021-11-13 02:28:19,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:19,677 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.50ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:19,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 1.22ms Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 116.50ms Time] [2021-11-13 02:28:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-13 02:28:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-13 02:28:19,684 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) [2021-11-13 02:28:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-13 02:28:19,687 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2021-11-13 02:28:19,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:19,692 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-13 02:28:19,693 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) [2021-11-13 02:28:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-13 02:28:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:28:19,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:19,695 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:19,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 02:28:19,696 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:19,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2091148262, now seen corresponding path program 1 times [2021-11-13 02:28:19,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:19,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107436648] [2021-11-13 02:28:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:19,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:20,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:20,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107436648] [2021-11-13 02:28:20,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107436648] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 02:28:20,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810701016] [2021-11-13 02:28:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:20,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:28:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:20,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:28:20,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 02:28:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:20,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 02:28:20,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:20,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:20,579 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-13 02:28:20,581 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 [2021-11-13 02:28:20,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:20,616 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-13 02:28:20,620 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 [2021-11-13 02:28:20,790 INFO L354 Elim1Store]: treesize reduction 151, result has 18.4 percent of original size [2021-11-13 02:28:20,791 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 245 treesize of output 249 [2021-11-13 02:28:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:21,445 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 [2021-11-13 02:28:21,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:21,461 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 [2021-11-13 02:28:22,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-13 02:28:22,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [957435417] [2021-11-13 02:28:22,214 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-13 02:28:22,215 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 02:28:22,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 02:28:22,226 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 02:28:22,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 02:28:22,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,262 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,264 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-13 02:28:22,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-13 02:28:22,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-13 02:28:22,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-13 02:28:22,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-13 02:28:22,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 02:28:22,276 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:28:22,279 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,281 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:28:22,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:28:22,286 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 02:28:22,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-13 02:28:22,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:28:22,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:28:22,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-13 02:28:22,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 02:28:22,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 02:28:22,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:28:22,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:28:22,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 02:28:22,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-13 02:28:22,311 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:28:22,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:28:22,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-13 02:28:22,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 02:28:22,322 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:28:22,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:22,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 02:28:22,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-13 02:28:22,341 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@384027a1 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) 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:610) 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) [2021-11-13 02:28:22,348 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:28:22,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-13 02:28:22,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890420604] [2021-11-13 02:28:22,349 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-13 02:28:22,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:22,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:22,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:28:22,351 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) [2021-11-13 02:28:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:28:22,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:28:22,353 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:22,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.01ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:28:22,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-13 02:28:22,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:28:22,580 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@384027a1 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$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:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) 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) [2021-11-13 02:28:22,583 INFO L158 Benchmark]: Toolchain (without parser) took 5116.57ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 82.7MB in the beginning and 134.7MB in the end (delta: -52.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-11-13 02:28:22,583 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 111.1MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:28:22,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.91ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 82.4MB in the beginning and 114.8MB in the end (delta: -32.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 02:28:22,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.09ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 112.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:28:22,585 INFO L158 Benchmark]: Boogie Preprocessor took 35.37ms. Allocated memory is still 148.9MB. Free memory was 112.7MB in the beginning and 111.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:28:22,585 INFO L158 Benchmark]: RCFGBuilder took 536.54ms. Allocated memory is still 148.9MB. Free memory was 111.0MB in the beginning and 93.0MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-13 02:28:22,586 INFO L158 Benchmark]: TraceAbstraction took 3987.25ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 92.6MB in the beginning and 134.7MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:28:22,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 111.1MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.91ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 82.4MB in the beginning and 114.8MB in the end (delta: -32.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.09ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 112.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.37ms. Allocated memory is still 148.9MB. Free memory was 112.7MB in the beginning and 111.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.54ms. Allocated memory is still 148.9MB. Free memory was 111.0MB in the beginning and 93.0MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3987.25ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 92.6MB in the beginning and 134.7MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@384027a1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@384027a1: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 02:28:22,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-13 02:28:25,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:25,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:25,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:25,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:25,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:25,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:25,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:25,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:25,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:25,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:25,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:25,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:25,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:25,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:25,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:25,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:25,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:25,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:25,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:25,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:25,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:25,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:25,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:25,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:25,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:25,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:25,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:25,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:25,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:25,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:25,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:25,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:25,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:25,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:25,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:25,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:25,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:25,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:25,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:25,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:25,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 02:28:25,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:25,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:25,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:25,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:25,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:25,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:25,628 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:25,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:25,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:25,629 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:25,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:25,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:28:25,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:28:25,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:25,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:25,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:25,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:25,635 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:25,635 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:28:25,635 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:28:25,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:28:25,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:25,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:25,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:25,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:25,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:28:25,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:25,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:25,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:25,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:25,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:25,639 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:28:25,640 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:28:25,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:25,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:25,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:25,645 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-13 02:28:26,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:26,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:26,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:26,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:26,127 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:26,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-13 02:28:26,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/f1641297f/e9351b06373f46feb55444fbfd7c4690/FLAG568992e76 [2021-11-13 02:28:26,920 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:26,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-13 02:28:26,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/f1641297f/e9351b06373f46feb55444fbfd7c4690/FLAG568992e76 [2021-11-13 02:28:27,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/data/f1641297f/e9351b06373f46feb55444fbfd7c4690 [2021-11-13 02:28:27,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:27,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:27,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:27,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:27,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:27,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:27,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e61e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27, skipping insertion in model container [2021-11-13 02:28:27,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:27,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:27,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:27,778 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-13 02:28:27,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:27,812 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:28:27,898 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_36b750ad-8c98-4c6e-89da-cc2f01b2927b/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-13 02:28:27,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:27,949 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:28:27,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27 WrapperNode [2021-11-13 02:28:27,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:27,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:27,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:28:27,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:28:27,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:28,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:28:28,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:28:28,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:28:28,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:28:28,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:28:28,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:28:28,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:28:28,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (1/1) ... [2021-11-13 02:28:28,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:28,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:28,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:28:28,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:28:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:28:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:28:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:28:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:28:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:28:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:28:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:28:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:28:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:28:28,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:28,996 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 02:28:28,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:28 BoogieIcfgContainer [2021-11-13 02:28:28,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:29,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:29,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:29,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:29,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:27" (1/3) ... [2021-11-13 02:28:29,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65029586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:29, skipping insertion in model container [2021-11-13 02:28:29,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:27" (2/3) ... [2021-11-13 02:28:29,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65029586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:29, skipping insertion in model container [2021-11-13 02:28:29,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:28" (3/3) ... [2021-11-13 02:28:29,009 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-13 02:28:29,016 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:29,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:28:29,082 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:29,091 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 [2021-11-13 02:28:29,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:28:29,121 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) [2021-11-13 02:28:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 02:28:29,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:29,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:29,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:29,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash -15033972, now seen corresponding path program 1 times [2021-11-13 02:28:29,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:29,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978862190] [2021-11-13 02:28:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:29,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:29,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:29,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:28:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:29,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:28:29,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:29,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:29,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:29,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978862190] [2021-11-13 02:28:29,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978862190] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:29,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:29,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:28:29,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392131272] [2021-11-13 02:28:29,541 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:29,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:28:29,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:28:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:28:29,630 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) [2021-11-13 02:28:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:29,669 INFO L93 Difference]: Finished difference Result 26 states and 37 transitions. [2021-11-13 02:28:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:28:29,672 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 [2021-11-13 02:28:29,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:29,697 INFO L225 Difference]: With dead ends: 26 [2021-11-13 02:28:29,697 INFO L226 Difference]: Without dead ends: 12 [2021-11-13 02:28:29,701 INFO L932 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 [2021-11-13 02:28:29,706 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:29,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.65ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:28:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-13 02:28:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 02:28:29,754 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) [2021-11-13 02:28:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-13 02:28:29,756 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 10 [2021-11-13 02:28:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:29,768 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-13 02:28:29,768 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) [2021-11-13 02:28:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-13 02:28:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 02:28:29,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:29,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:29,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:29,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:29,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:29,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:29,972 INFO L85 PathProgramCache]: Analyzing trace with hash -263268138, now seen corresponding path program 1 times [2021-11-13 02:28:29,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:29,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616877246] [2021-11-13 02:28:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:29,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:29,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:30,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:28:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:30,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:28:30,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:30,424 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-11-13 02:28:30,425 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 [2021-11-13 02:28:30,522 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-13 02:28:30,523 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 [2021-11-13 02:28:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:30,641 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 [2021-11-13 02:28:30,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:30,671 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 [2021-11-13 02:28:31,672 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:31,673 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 [2021-11-13 02:28:31,688 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:31,688 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 [2021-11-13 02:28:31,767 INFO L354 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2021-11-13 02:28:31,768 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 [2021-11-13 02:28:32,926 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:32,927 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 [2021-11-13 02:28:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:33,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:33,759 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:33,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616877246] [2021-11-13 02:28:33,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616877246] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:33,760 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:33,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-13 02:28:33,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633348059] [2021-11-13 02:28:33,763 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:33,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:28:33,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:33,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:28:33,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:28:33,777 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) [2021-11-13 02:28:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:37,132 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2021-11-13 02:28:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:28:37,132 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 [2021-11-13 02:28:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:37,134 INFO L225 Difference]: With dead ends: 24 [2021-11-13 02:28:37,135 INFO L226 Difference]: Without dead ends: 22 [2021-11-13 02:28:37,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2021-11-13 02:28:37,137 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2032.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.47ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 2121.45ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:37,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 48 Invalid, 100 Unknown, 0 Unchecked, 3.47ms Time], IncrementalHoareTripleChecker [23 Valid, 59 Invalid, 0 Unknown, 18 Unchecked, 2121.45ms Time] [2021-11-13 02:28:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-13 02:28:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-11-13 02:28:37,145 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) [2021-11-13 02:28:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-11-13 02:28:37,146 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 10 [2021-11-13 02:28:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:37,147 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-11-13 02:28:37,147 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) [2021-11-13 02:28:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-13 02:28:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 02:28:37,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:37,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:37,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:37,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:37,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash -263266216, now seen corresponding path program 1 times [2021-11-13 02:28:37,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:37,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466560975] [2021-11-13 02:28:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:37,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:37,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:37,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:28:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:37,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 02:28:37,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:37,613 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-13 02:28:37,614 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 [2021-11-13 02:28:37,657 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 [2021-11-13 02:28:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:37,679 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 [2021-11-13 02:28:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:37,692 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 [2021-11-13 02:28:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:37,717 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 [2021-11-13 02:28:38,063 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:38,064 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 [2021-11-13 02:28:38,076 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:38,077 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 [2021-11-13 02:28:38,101 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-13 02:28:38,102 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 [2021-11-13 02:28:38,214 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:28:38,221 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 [2021-11-13 02:28:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:38,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:38,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:38,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466560975] [2021-11-13 02:28:38,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466560975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:38,544 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:38,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 02:28:38,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752873609] [2021-11-13 02:28:38,545 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:38,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:28:38,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:28:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:28:38,549 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) [2021-11-13 02:28:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:40,069 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-11-13 02:28:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:28:40,070 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 [2021-11-13 02:28:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:40,071 INFO L225 Difference]: With dead ends: 28 [2021-11-13 02:28:40,071 INFO L226 Difference]: Without dead ends: 21 [2021-11-13 02:28:40,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:28:40,073 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 944.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 1002.43ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:40,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 5 Unchecked, 1002.43ms Time] [2021-11-13 02:28:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-13 02:28:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-11-13 02:28:40,081 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) [2021-11-13 02:28:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-13 02:28:40,082 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2021-11-13 02:28:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:40,083 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-13 02:28:40,083 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) [2021-11-13 02:28:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-13 02:28:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 02:28:40,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:40,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:40,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:40,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:40,302 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash -434920839, now seen corresponding path program 1 times [2021-11-13 02:28:40,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:40,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818092323] [2021-11-13 02:28:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:40,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:40,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:40,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:40,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:28:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:40,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 02:28:40,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:40,531 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:28:40,531 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 [2021-11-13 02:28:40,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:40,553 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 [2021-11-13 02:28:40,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:40,613 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:28:40,614 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 [2021-11-13 02:28:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:40,630 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:28:40,631 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 [2021-11-13 02:28:40,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:40,661 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 [2021-11-13 02:28:40,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:40,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-13 02:28:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:42,020 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:28:42,020 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 [2021-11-13 02:28:42,772 INFO L354 Elim1Store]: treesize reduction 274, result has 9.3 percent of original size [2021-11-13 02:28:42,773 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 282 treesize of output 261 [2021-11-13 02:28:42,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:42,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-13 02:28:42,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:43,018 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:28:43,018 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 233 treesize of output 197 [2021-11-13 02:28:43,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:43,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-13 02:28:43,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:43,141 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:28:43,141 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 [2021-11-13 02:28:43,142 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:28:43,182 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:28:43,183 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 [2021-11-13 02:28:44,041 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:28:44,042 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 [2021-11-13 02:28:44,152 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-13 02:28:44,152 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 [2021-11-13 02:28:44,167 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:28:44,168 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 [2021-11-13 02:28:44,468 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:28:44,468 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 [2021-11-13 02:28:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:44,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:45,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:45,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-13 02:28:45,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:45,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-13 02:28:45,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:45,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-13 02:28:45,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:45,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-13 02:28:45,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:45,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:28:47,726 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_5| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_5| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_6)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_5)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_4) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_5|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_8) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_5|))) |c_ULTIMATE.start_main_~head~0#1.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#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_5|))))))))) is different from false [2021-11-13 02:28:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:28:48,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:48,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818092323] [2021-11-13 02:28:48,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818092323] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:28:48,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1738098190] [2021-11-13 02:28:48,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:48,661 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:28:48,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:28:48,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:28:48,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-13 02:28:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:48,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 02:28:48,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:48,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:48,902 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:28:48,902 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 [2021-11-13 02:28:48,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:48,914 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:28:48,914 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 [2021-11-13 02:28:48,960 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:28:48,960 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 [2021-11-13 02:28:48,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:48,986 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 [2021-11-13 02:28:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:49,021 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 [2021-11-13 02:28:49,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:49,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-13 02:28:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:50,821 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:28:50,821 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 243 treesize of output 225 [2021-11-13 02:28:50,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:50,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-11-13 02:28:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:51,270 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:28:51,271 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 236 [2021-11-13 02:28:51,446 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-13 02:28:51,447 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 274 treesize of output 241 [2021-11-13 02:28:51,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:51,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-13 02:28:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:51,541 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:28:51,541 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 223 treesize of output 175 [2021-11-13 02:28:51,544 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:28:51,600 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:28:51,600 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 148 treesize of output 156 [2021-11-13 02:28:52,064 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:28:52,064 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 [2021-11-13 02:28:52,156 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-13 02:28:52,156 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 [2021-11-13 02:28:52,179 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:28:52,179 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 [2021-11-13 02:28:52,392 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:28:52,392 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 [2021-11-13 02:28:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:52,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:52,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:52,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-13 02:28:52,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:52,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-13 02:28:52,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:52,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-13 02:28:52,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:52,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-13 02:28:52,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:52,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:28:55,480 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1.base_7| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_7| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_15) .cse8 v_DerPreprocessor_14)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_13)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_12) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_7|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_16) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_7|))) |c_ULTIMATE.start_main_~head~0#1.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#1.base_7|))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) .cse0))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) is different from false [2021-11-13 02:28:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:28:56,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1738098190] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:28:56,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526335146] [2021-11-13 02:28:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:56,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:28:56,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:56,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:28:56,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 02:28:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 02:28:56,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:56,674 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-13 02:28:56,675 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 [2021-11-13 02:28:56,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:56,732 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-13 02:28:56,733 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 [2021-11-13 02:28:56,820 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:28:56,821 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 [2021-11-13 02:28:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:56,845 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 [2021-11-13 02:28:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:56,871 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 [2021-11-13 02:28:57,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:57,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-13 02:28:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:59,426 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:28:59,426 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 270 treesize of output 252 [2021-11-13 02:28:59,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:28:59,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-11-13 02:28:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:28:59,884 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:28:59,885 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 299 treesize of output 263 [2021-11-13 02:29:00,079 INFO L354 Elim1Store]: treesize reduction 362, result has 8.6 percent of original size [2021-11-13 02:29:00,080 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 301 treesize of output 268 [2021-11-13 02:29:00,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:00,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-13 02:29:00,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:00,241 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-13 02:29:00,242 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 250 treesize of output 212 [2021-11-13 02:29:00,243 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:29:00,286 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:29:00,287 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 188 treesize of output 196 [2021-11-13 02:29:01,495 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:29:01,495 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 [2021-11-13 02:29:01,607 INFO L354 Elim1Store]: treesize reduction 76, result has 33.9 percent of original size [2021-11-13 02:29:01,608 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 124 [2021-11-13 02:29:01,639 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:29:01,640 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 144 treesize of output 110 [2021-11-13 02:29:02,635 INFO L354 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2021-11-13 02:29:02,636 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 102 treesize of output 74 [2021-11-13 02:29:02,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:02,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:02,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:02,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-13 02:29:02,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:02,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-13 02:29:02,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:02,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-13 02:29:02,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:02,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-13 02:29:02,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:02,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:29:05,978 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_9| (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_9| (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_23) .cse8 v_DerPreprocessor_22)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_21)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_20) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_24) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse4 (select .cse2 .cse3))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_9|))) (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-13 02:29:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:29:06,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526335146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:06,857 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:29:06,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 23 [2021-11-13 02:29:06,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136681600] [2021-11-13 02:29:06,858 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:29:06,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 02:29:06,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:06,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 02:29:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=303, Unknown=3, NotChecked=114, Total=506 [2021-11-13 02:29:06,861 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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) [2021-11-13 02:29:10,603 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse25 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse26 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse24 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse39 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (forall ((|v_ULTIMATE.start_main_~n~0#1.base_7| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_7| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_15) .cse8 v_DerPreprocessor_14)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_13)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_12) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_7|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_16) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_7|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_7|))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) .cse0))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_5| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_5| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse21 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse19 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|)) (.cse20 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|))) (let ((.cse13 (let ((.cse23 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| |ULTIMATE.start_main_~x~0#1|) .cse19 v_DerPreprocessor_7) .cse20 v_DerPreprocessor_6)))) (store .cse23 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse23 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 v_DerPreprocessor_5)))) (.cse14 (select (select (let ((.cse22 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_4) .cse19 |c_ULTIMATE.start_main_~m~0#1.base|) .cse20 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse22 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse22 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.base_5|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse15 (select .cse13 .cse14)) (.cse16 (select (select (let ((.cse17 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_8) .cse19 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse20 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse17 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse17 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.offset_5|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse12 (select .cse15 .cse16))) (or (not (bvsle .cse12 (_ bv100 32))) (bvslt (select (select (store .cse13 .cse14 (store .cse15 .cse16 (bvadd .cse12 (select (select .cse13 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_5|))))))))) (= (select .cse24 .cse25) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse26 .cse25)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (forall ((v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_9| (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_9| (_ BitVec 32))) (let ((.cse36 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse33 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse34 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|)) (.cse35 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|))) (let ((.cse27 (let ((.cse38 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| |ULTIMATE.start_main_~x~0#1|) .cse34 v_DerPreprocessor_23) .cse35 v_DerPreprocessor_22)))) (store .cse38 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse38 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 v_DerPreprocessor_21)))) (.cse28 (select (select (let ((.cse37 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_20) .cse34 |c_ULTIMATE.start_main_~m~0#1.base|) .cse35 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse37 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse37 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 |v_ULTIMATE.start_main_~n~0#1.base_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse36))) (let ((.cse29 (select .cse27 .cse28)) (.cse30 (select (select (let ((.cse32 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_24) .cse34 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse35 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse32 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse32 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 |v_ULTIMATE.start_main_~n~0#1.offset_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse36))) (let ((.cse31 (select .cse29 .cse30))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_9|))) (bvslt (select (select (store .cse27 .cse28 (store .cse29 .cse30 (bvadd .cse31 (select (select .cse27 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (bvsle .cse31 (_ bv100 32))))))))) (or (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= |c_ULTIMATE.start_main_~head~0#1.base| |c_ULTIMATE.start_main_~m~0#1.base|)) (= (select .cse26 .cse39) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse24 .cse39)))) is different from false [2021-11-13 02:29:12,616 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse25 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse26 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse24 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse39 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (forall ((|v_ULTIMATE.start_main_~n~0#1.base_7| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_7| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_7|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_15) .cse8 v_DerPreprocessor_14)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_13)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_12) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_7|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_7|) |v_ULTIMATE.start_main_~n~0#1.offset_7| v_DerPreprocessor_16) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_7|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_7|))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) .cse0))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_5| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_5| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse21 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse19 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|)) (.cse20 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_5|))) (let ((.cse13 (let ((.cse23 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| |ULTIMATE.start_main_~x~0#1|) .cse19 v_DerPreprocessor_7) .cse20 v_DerPreprocessor_6)))) (store .cse23 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse23 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 v_DerPreprocessor_5)))) (.cse14 (select (select (let ((.cse22 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_4) .cse19 |c_ULTIMATE.start_main_~m~0#1.base|) .cse20 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse22 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse22 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.base_5|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse15 (select .cse13 .cse14)) (.cse16 (select (select (let ((.cse17 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_5|) |v_ULTIMATE.start_main_~n~0#1.offset_5| v_DerPreprocessor_8) .cse19 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse20 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse17 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse17 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.offset_5|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse12 (select .cse15 .cse16))) (or (not (bvsle .cse12 (_ bv100 32))) (bvslt (select (select (store .cse13 .cse14 (store .cse15 .cse16 (bvadd .cse12 (select (select .cse13 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_5|))))))))) (= (select .cse24 .cse25) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse26 .cse25)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (forall ((v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_9| (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_9| (_ BitVec 32))) (let ((.cse36 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse33 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse34 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|)) (.cse35 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_9|))) (let ((.cse27 (let ((.cse38 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| |ULTIMATE.start_main_~x~0#1|) .cse34 v_DerPreprocessor_23) .cse35 v_DerPreprocessor_22)))) (store .cse38 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse38 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 v_DerPreprocessor_21)))) (.cse28 (select (select (let ((.cse37 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_20) .cse34 |c_ULTIMATE.start_main_~m~0#1.base|) .cse35 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse37 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse37 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 |v_ULTIMATE.start_main_~n~0#1.base_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse36))) (let ((.cse29 (select .cse27 .cse28)) (.cse30 (select (select (let ((.cse32 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_9|) |v_ULTIMATE.start_main_~n~0#1.offset_9| v_DerPreprocessor_24) .cse34 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse35 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse32 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse32 |c_ULTIMATE.start_main_~list~0#1.base|) .cse33 |v_ULTIMATE.start_main_~n~0#1.offset_9|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse36))) (let ((.cse31 (select .cse29 .cse30))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_9|))) (bvslt (select (select (store .cse27 .cse28 (store .cse29 .cse30 (bvadd .cse31 (select (select .cse27 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (bvsle .cse31 (_ bv100 32))))))))) (or (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= |c_ULTIMATE.start_main_~head~0#1.base| |c_ULTIMATE.start_main_~m~0#1.base|)) (= (select .cse26 .cse39) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse24 .cse39)))) is different from true [2021-11-13 02:29:18,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:18,421 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2021-11-13 02:29:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 02:29:18,422 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 [2021-11-13 02:29:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:18,424 INFO L225 Difference]: With dead ends: 45 [2021-11-13 02:29:18,424 INFO L226 Difference]: Without dead ends: 38 [2021-11-13 02:29:18,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=146, Invalid=515, Unknown=5, NotChecked=204, Total=870 [2021-11-13 02:29:18,426 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3395.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.00ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 3545.30ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:18,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 22 Invalid, 200 Unknown, 0 Unchecked, 3.00ms Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 79 Unchecked, 3545.30ms Time] [2021-11-13 02:29:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-13 02:29:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2021-11-13 02:29:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 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) [2021-11-13 02:29:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2021-11-13 02:29:18,437 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 12 [2021-11-13 02:29:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:18,438 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2021-11-13 02:29:18,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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) [2021-11-13 02:29:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2021-11-13 02:29:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 02:29:18,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:18,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:18,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:18,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:18,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:19,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:29:19,041 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:19,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:19,041 INFO L85 PathProgramCache]: Analyzing trace with hash -434918917, now seen corresponding path program 1 times [2021-11-13 02:29:19,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:19,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970086837] [2021-11-13 02:29:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:19,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:19,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:19,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:29:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:19,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 02:29:19,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:19,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:19,299 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 [2021-11-13 02:29:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:19,319 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 [2021-11-13 02:29:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:19,398 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:29:19,399 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 [2021-11-13 02:29:19,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:19,422 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:19,422 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 [2021-11-13 02:29:19,505 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:29:19,505 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 [2021-11-13 02:29:19,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:19,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-13 02:29:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:22,322 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:29:22,323 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 239 treesize of output 221 [2021-11-13 02:29:22,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:22,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-13 02:29:22,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:23,043 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:29:23,044 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 268 treesize of output 232 [2021-11-13 02:29:23,249 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-13 02:29:23,249 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 270 treesize of output 237 [2021-11-13 02:29:23,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:23,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-11-13 02:29:23,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:23,360 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:29:23,360 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 219 treesize of output 171 [2021-11-13 02:29:23,363 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:29:23,408 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:29:23,409 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 144 treesize of output 152 [2021-11-13 02:29:24,252 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:29:24,253 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 154 treesize of output 97 [2021-11-13 02:29:24,308 INFO L354 Elim1Store]: treesize reduction 100, result has 9.9 percent of original size [2021-11-13 02:29:24,308 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 85 treesize of output 71 [2021-11-13 02:29:24,324 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:29:24,324 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 60 treesize of output 42 [2021-11-13 02:29:24,396 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:29:24,397 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 [2021-11-13 02:29:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:24,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:24,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:24,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-11-13 02:29:24,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:24,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-11-13 02:29:24,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:24,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-13 02:29:24,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:24,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-11-13 02:29:24,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:24,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 476 [2021-11-13 02:29:27,479 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_11| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse8 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse6 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| |ULTIMATE.start_main_~x~0#1|) .cse6 v_DerPreprocessor_31) .cse7 v_DerPreprocessor_30)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_29)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_28) .cse6 |c_ULTIMATE.start_main_~m~0#1.base|) .cse7 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse9 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_32) .cse6 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse7 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.offset_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse2 .cse3 (bvadd (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse2 .cse3))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_11|))))) is different from false [2021-11-13 02:29:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:29:27,973 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:27,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970086837] [2021-11-13 02:29:27,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970086837] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:27,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1826447955] [2021-11-13 02:29:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:27,973 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:29:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:29:27,974 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:29:27,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-13 02:29:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:28,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:29:28,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:28,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,212 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 [2021-11-13 02:29:28,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,230 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 [2021-11-13 02:29:28,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,291 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:29:28,292 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 [2021-11-13 02:29:28,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,308 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:28,309 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 [2021-11-13 02:29:28,366 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:29:28,366 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 [2021-11-13 02:29:28,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:28,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-13 02:29:28,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:29:28,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:28,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:29:30,008 INFO L354 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2021-11-13 02:29:30,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 222 treesize of output 208 [2021-11-13 02:29:30,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:30,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-13 02:29:30,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:30,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:30,031 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:29:30,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:30,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:29:30,348 INFO L354 Elim1Store]: treesize reduction 64, result has 26.4 percent of original size [2021-11-13 02:29:30,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 255 treesize of output 235 [2021-11-13 02:29:30,495 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-13 02:29:30,496 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 216 treesize of output 199 [2021-11-13 02:29:30,619 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:29:30,620 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 180 treesize of output 188 [2021-11-13 02:29:30,628 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:29:30,641 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:30,641 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 166 treesize of output 139 [2021-11-13 02:29:30,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:30,656 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:30,657 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 133 treesize of output 120 [2021-11-13 02:29:31,712 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-13 02:29:31,713 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 137 treesize of output 92 [2021-11-13 02:29:31,789 INFO L354 Elim1Store]: treesize reduction 100, result has 9.9 percent of original size [2021-11-13 02:29:31,789 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 80 treesize of output 66 [2021-11-13 02:29:31,810 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-13 02:29:31,811 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 43 [2021-11-13 02:29:31,898 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:29:31,898 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 [2021-11-13 02:29:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:31,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:32,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:32,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-11-13 02:29:32,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:32,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-13 02:29:32,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:32,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-11-13 02:29:32,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:32,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-13 02:29:32,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:32,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 405 [2021-11-13 02:29:34,335 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1.base_13| (_ BitVec 32)) (v_DerPreprocessor_35 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse0 (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) |ULTIMATE.start_main_~x~0#1|) (_ bv4 32) v_DerPreprocessor_38) (_ bv8 32) v_DerPreprocessor_37)))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_36)))) (.cse1 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_35) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.base|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_13|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_39) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 (_ bv0 32)))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_13|)))))) is different from false [2021-11-13 02:29:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:29:34,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1826447955] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:34,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909108468] [2021-11-13 02:29:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:34,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:29:34,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:29:34,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:29:34,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 02:29:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:34,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:29:34,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:34,856 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:29:34,856 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 [2021-11-13 02:29:34,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:34,881 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 [2021-11-13 02:29:34,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:34,890 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 [2021-11-13 02:29:34,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:34,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-13 02:29:34,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:34,944 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 [2021-11-13 02:29:35,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:35,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-13 02:29:35,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:36,569 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:29:36,570 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 242 treesize of output 224 [2021-11-13 02:29:36,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:36,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-11-13 02:29:36,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:36,978 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:29:36,979 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 271 treesize of output 235 [2021-11-13 02:29:37,181 INFO L354 Elim1Store]: treesize reduction 350, result has 8.9 percent of original size [2021-11-13 02:29:37,181 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 273 treesize of output 240 [2021-11-13 02:29:37,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:37,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-13 02:29:37,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:37,289 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-13 02:29:37,290 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 222 treesize of output 174 [2021-11-13 02:29:37,290 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:29:37,346 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-13 02:29:37,347 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 147 treesize of output 155 [2021-11-13 02:29:38,105 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:29:38,105 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 [2021-11-13 02:29:38,164 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-13 02:29:38,164 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 [2021-11-13 02:29:38,179 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:29:38,179 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 [2021-11-13 02:29:38,293 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:29:38,293 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 [2021-11-13 02:29:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:38,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:38,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:38,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-11-13 02:29:38,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:38,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-11-13 02:29:38,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:38,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-13 02:29:38,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:38,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-11-13 02:29:38,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:38,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 476 [2021-11-13 02:29:40,733 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_43 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_15| (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_15| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_15|))) (bvsgt (select (select (let ((.cse8 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse6 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| |ULTIMATE.start_main_~x~0#1|) .cse6 v_DerPreprocessor_46) .cse7 v_DerPreprocessor_45)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_44)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_43) .cse6 |c_ULTIMATE.start_main_~m~0#1.base|) .cse7 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse9 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_47) .cse6 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse7 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.offset_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)))) is different from false [2021-11-13 02:29:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 02:29:41,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909108468] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:29:41,131 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:29:41,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 19 [2021-11-13 02:29:41,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619283664] [2021-11-13 02:29:41,132 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:29:41,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 02:29:41,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 02:29:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=186, Unknown=3, NotChecked=90, Total=342 [2021-11-13 02:29:41,133 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 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) [2021-11-13 02:29:44,365 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse21 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse22 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse20 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse23 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~n~0#1.base_13| (_ BitVec 32)) (v_DerPreprocessor_35 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse0 (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) |ULTIMATE.start_main_~x~0#1|) (_ bv4 32) v_DerPreprocessor_38) (_ bv8 32) v_DerPreprocessor_37)))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_36)))) (.cse1 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_35) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.base|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_13|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_39) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 (_ bv0 32)))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_13|)))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_11| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse17 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse14 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse15 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|))) (let ((.cse9 (let ((.cse19 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| |ULTIMATE.start_main_~x~0#1|) .cse15 v_DerPreprocessor_31) .cse16 v_DerPreprocessor_30)))) (store .cse19 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse19 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 v_DerPreprocessor_29)))) (.cse10 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_28) .cse15 |c_ULTIMATE.start_main_~m~0#1.base|) .cse16 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse18 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse18 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.base_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse9 .cse10 (let ((.cse11 (select .cse9 .cse10)) (.cse12 (select (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_32) .cse15 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse16 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse13 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse13 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.offset_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse11 .cse12 (bvadd (select (select .cse9 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse11 .cse12))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_11|))))) (= (select .cse20 .cse21) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse22 .cse21)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (= (select .cse22 .cse23) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (forall ((v_DerPreprocessor_43 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_15| (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_15| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_15|))) (bvsgt (select (select (let ((.cse32 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse29 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse30 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|)) (.cse31 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|))) (let ((.cse24 (let ((.cse34 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| |ULTIMATE.start_main_~x~0#1|) .cse30 v_DerPreprocessor_46) .cse31 v_DerPreprocessor_45)))) (store .cse34 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse34 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 v_DerPreprocessor_44)))) (.cse25 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_43) .cse30 |c_ULTIMATE.start_main_~m~0#1.base|) .cse31 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse33 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse33 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 |v_ULTIMATE.start_main_~n~0#1.base_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse32))) (store .cse24 .cse25 (let ((.cse26 (select .cse24 .cse25)) (.cse27 (select (select (let ((.cse28 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_47) .cse30 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse31 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse28 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse28 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 |v_ULTIMATE.start_main_~n~0#1.offset_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse32))) (store .cse26 .cse27 (bvadd (select .cse26 .cse27) (select (select .cse24 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse20 .cse23)))) is different from false [2021-11-13 02:29:46,379 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse21 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse22 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse20 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse23 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~n~0#1.base_13| (_ BitVec 32)) (v_DerPreprocessor_35 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse0 (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) |ULTIMATE.start_main_~x~0#1|) (_ bv4 32) v_DerPreprocessor_38) (_ bv8 32) v_DerPreprocessor_37)))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_36)))) (.cse1 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_35) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.base|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_13|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_13|) (_ bv0 32) v_DerPreprocessor_39) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 (_ bv0 32)))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_13|)))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_11| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse17 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse14 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse15 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_11|))) (let ((.cse9 (let ((.cse19 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| |ULTIMATE.start_main_~x~0#1|) .cse15 v_DerPreprocessor_31) .cse16 v_DerPreprocessor_30)))) (store .cse19 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse19 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 v_DerPreprocessor_29)))) (.cse10 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_28) .cse15 |c_ULTIMATE.start_main_~m~0#1.base|) .cse16 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse18 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse18 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.base_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse9 .cse10 (let ((.cse11 (select .cse9 .cse10)) (.cse12 (select (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_11|) |v_ULTIMATE.start_main_~n~0#1.offset_11| v_DerPreprocessor_32) .cse15 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse16 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse13 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse13 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.offset_11|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse11 .cse12 (bvadd (select (select .cse9 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse11 .cse12))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_11|))))) (= (select .cse20 .cse21) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse22 .cse21)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (= (select .cse22 .cse23) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (forall ((v_DerPreprocessor_43 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_15| (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_15| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_15|))) (bvsgt (select (select (let ((.cse32 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse29 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse30 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|)) (.cse31 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_15|))) (let ((.cse24 (let ((.cse34 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| |ULTIMATE.start_main_~x~0#1|) .cse30 v_DerPreprocessor_46) .cse31 v_DerPreprocessor_45)))) (store .cse34 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse34 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 v_DerPreprocessor_44)))) (.cse25 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_43) .cse30 |c_ULTIMATE.start_main_~m~0#1.base|) .cse31 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse33 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse33 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 |v_ULTIMATE.start_main_~n~0#1.base_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse32))) (store .cse24 .cse25 (let ((.cse26 (select .cse24 .cse25)) (.cse27 (select (select (let ((.cse28 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_15|) |v_ULTIMATE.start_main_~n~0#1.offset_15| v_DerPreprocessor_47) .cse30 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse31 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse28 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse28 |c_ULTIMATE.start_main_~list~0#1.base|) .cse29 |v_ULTIMATE.start_main_~n~0#1.offset_15|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse32))) (store .cse26 .cse27 (bvadd (select .cse26 .cse27) (select (select .cse24 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse20 .cse23)))) is different from true [2021-11-13 02:29:48,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:48,265 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2021-11-13 02:29:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:29:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 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 [2021-11-13 02:29:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:48,267 INFO L225 Difference]: With dead ends: 43 [2021-11-13 02:29:48,267 INFO L226 Difference]: Without dead ends: 36 [2021-11-13 02:29:48,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=95, Invalid=296, Unknown=5, NotChecked=156, Total=552 [2021-11-13 02:29:48,268 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2326.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.73ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 2458.74ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:48,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 49 Invalid, 178 Unknown, 0 Unchecked, 1.73ms Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 80 Unchecked, 2458.74ms Time] [2021-11-13 02:29:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-13 02:29:48,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2021-11-13 02:29:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-11-13 02:29:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-13 02:29:48,277 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 12 [2021-11-13 02:29:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:48,278 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-13 02:29:48,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 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) [2021-11-13 02:29:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-13 02:29:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 02:29:48,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:48,279 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:48,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:48,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:48,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-13 02:29:48,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:48,904 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1483344674, now seen corresponding path program 1 times [2021-11-13 02:29:48,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:48,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240564251] [2021-11-13 02:29:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:48,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:48,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:48,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:48,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:29:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:49,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 02:29:49,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:49,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:49,132 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:29:49,133 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 [2021-11-13 02:29:49,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:49,150 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:49,151 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 [2021-11-13 02:29:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:49,174 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 [2021-11-13 02:29:49,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:49,201 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 [2021-11-13 02:29:49,247 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:29:49,247 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 [2021-11-13 02:29:49,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:49,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-13 02:29:49,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:51,293 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:29:51,293 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 243 treesize of output 225 [2021-11-13 02:29:52,198 INFO L354 Elim1Store]: treesize reduction 274, result has 9.3 percent of original size [2021-11-13 02:29:52,198 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 281 treesize of output 260 [2021-11-13 02:29:52,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:52,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-13 02:29:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:52,495 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:29:52,495 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 232 treesize of output 196 [2021-11-13 02:29:52,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:52,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-13 02:29:52,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:29:52,616 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:29:52,617 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 223 treesize of output 175 [2021-11-13 02:29:52,618 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:29:52,665 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:29:52,665 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 148 treesize of output 156 [2021-11-13 02:29:53,501 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:29:53,502 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 [2021-11-13 02:29:53,599 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-13 02:29:53,599 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 [2021-11-13 02:29:53,611 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:29:53,612 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 [2021-11-13 02:29:53,929 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:29:53,929 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 [2021-11-13 02:29:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:29:54,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:54,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:54,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-13 02:29:54,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:54,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-13 02:29:54,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:54,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-13 02:29:54,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:54,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-13 02:29:54,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:29:54,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:29:57,712 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1.offset_17| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_17| (_ BitVec 32)) (v_DerPreprocessor_53 (_ BitVec 32)) (v_DerPreprocessor_54 (_ BitVec 32)) (v_DerPreprocessor_51 (_ BitVec 32)) (v_DerPreprocessor_52 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_17|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_17|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_54) .cse8 v_DerPreprocessor_53)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_52)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| v_DerPreprocessor_51) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_17|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| v_DerPreprocessor_55) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_17|))) |c_ULTIMATE.start_main_~head~0#1.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#1.base_17|))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) is different from false [2021-11-13 02:30:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:30:00,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:00,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240564251] [2021-11-13 02:30:00,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240564251] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:30:00,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1046437122] [2021-11-13 02:30:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:00,796 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:30:00,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:30:00,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:30:00,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-13 02:30:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:00,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 02:30:00,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:01,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:01,024 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 [2021-11-13 02:30:01,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:01,055 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 [2021-11-13 02:30:01,119 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:30:01,120 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 [2021-11-13 02:30:01,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:01,200 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:30:01,201 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 [2021-11-13 02:30:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:01,222 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:01,223 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 [2021-11-13 02:30:01,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:01,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-13 02:30:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:03,587 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:30:03,588 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 [2021-11-13 02:30:03,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:03,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-13 02:30:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:04,010 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:30:04,010 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 [2021-11-13 02:30:04,246 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-13 02:30:04,247 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 [2021-11-13 02:30:04,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:04,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-13 02:30:04,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:04,379 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:30:04,379 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 [2021-11-13 02:30:04,380 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:30:04,428 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:30:04,428 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 [2021-11-13 02:30:04,916 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:30:04,916 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 [2021-11-13 02:30:05,028 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-13 02:30:05,029 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 [2021-11-13 02:30:05,052 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:30:05,052 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 [2021-11-13 02:30:05,272 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:05,272 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 [2021-11-13 02:30:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:30:05,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:05,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:05,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 467 [2021-11-13 02:30:05,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:05,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 497 [2021-11-13 02:30:05,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:05,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 577 [2021-11-13 02:30:05,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:05,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:30:05,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:05,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 636 [2021-11-13 02:30:08,522 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1.offset_19| (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_19| (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_19|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_19|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_62) .cse8 v_DerPreprocessor_61)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_60)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| v_DerPreprocessor_59) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_19|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| v_DerPreprocessor_63) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_19|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_19|))))) (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#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) is different from false [2021-11-13 02:30:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:30:11,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1046437122] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:30:11,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691635111] [2021-11-13 02:30:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:11,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:30:11,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:30:11,868 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:30:11,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-13 02:30:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:11,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 02:30:11,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:12,057 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-13 02:30:12,057 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 [2021-11-13 02:30:12,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:12,115 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-13 02:30:12,116 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 [2021-11-13 02:30:12,196 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:30:12,197 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 [2021-11-13 02:30:12,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:12,232 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 [2021-11-13 02:30:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:12,260 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 [2021-11-13 02:30:12,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:12,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-13 02:30:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:15,435 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:30:15,435 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 [2021-11-13 02:30:16,861 INFO L354 Elim1Store]: treesize reduction 254, result has 9.9 percent of original size [2021-11-13 02:30:16,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-13 02:30:16,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:16,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-13 02:30:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:17,235 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-13 02:30:17,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-13 02:30:17,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:17,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-13 02:30:17,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:17,456 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-13 02:30:17,457 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 [2021-11-13 02:30:17,458 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:30:17,510 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:30:17,510 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 [2021-11-13 02:30:18,884 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:30:18,885 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 [2021-11-13 02:30:19,047 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-13 02:30:19,047 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 [2021-11-13 02:30:19,067 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:30:19,067 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 140 treesize of output 110 [2021-11-13 02:30:19,922 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:30:19,922 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 [2021-11-13 02:30:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:30:20,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:20,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:20,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 467 [2021-11-13 02:30:20,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:20,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 497 [2021-11-13 02:30:20,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:20,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 577 [2021-11-13 02:30:20,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:20,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:30:20,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:20,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 636 [2021-11-13 02:30:23,284 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_68 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_21| (_ BitVec 32)) (v_DerPreprocessor_69 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_21| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_67 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_21|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_21|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_70) .cse8 v_DerPreprocessor_69)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_68)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| v_DerPreprocessor_67) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_21|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| v_DerPreprocessor_71) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_21|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) .cse0))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_21|))))))))))) is different from false [2021-11-13 02:30:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:30:26,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691635111] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:30:26,655 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:30:26,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 23 [2021-11-13 02:30:26,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177289295] [2021-11-13 02:30:26,656 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:30:26,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 02:30:26,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 02:30:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=303, Unknown=3, NotChecked=114, Total=506 [2021-11-13 02:30:26,658 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2021-11-13 02:30:29,328 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse37 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse38 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse36 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse39 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~n~0#1.offset_19| (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_19| (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_19|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_19|))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_62) .cse8 v_DerPreprocessor_61)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_60)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| v_DerPreprocessor_59) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_19|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_19| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_19|) |v_ULTIMATE.start_main_~n~0#1.offset_19| v_DerPreprocessor_63) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_19|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_19|))))) (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#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~n~0#1.offset_17| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_17| (_ BitVec 32)) (v_DerPreprocessor_53 (_ BitVec 32)) (v_DerPreprocessor_54 (_ BitVec 32)) (v_DerPreprocessor_51 (_ BitVec 32)) (v_DerPreprocessor_52 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (let ((.cse21 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse19 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_17|)) (.cse20 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_17|))) (let ((.cse13 (let ((.cse23 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| |ULTIMATE.start_main_~x~0#1|) .cse19 v_DerPreprocessor_54) .cse20 v_DerPreprocessor_53)))) (store .cse23 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse23 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 v_DerPreprocessor_52)))) (.cse14 (select (select (let ((.cse22 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| v_DerPreprocessor_51) .cse19 |c_ULTIMATE.start_main_~m~0#1.base|) .cse20 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse22 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse22 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.base_17|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse15 (select .cse13 .cse14)) (.cse16 (select (select (let ((.cse17 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_17| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_17|) |v_ULTIMATE.start_main_~n~0#1.offset_17| v_DerPreprocessor_55) .cse19 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse20 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse17 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse17 |c_ULTIMATE.start_main_~list~0#1.base|) .cse18 |v_ULTIMATE.start_main_~n~0#1.offset_17|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse21))) (let ((.cse12 (select .cse15 .cse16))) (or (not (bvsle .cse12 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_17|))) (bvslt (select (select (store .cse13 .cse14 (store .cse15 .cse16 (bvadd .cse12 (select (select .cse13 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_68 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_21| (_ BitVec 32)) (v_DerPreprocessor_69 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_21| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_67 (_ BitVec 32))) (let ((.cse33 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse30 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse31 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_21|)) (.cse32 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_21|))) (let ((.cse25 (let ((.cse35 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| |ULTIMATE.start_main_~x~0#1|) .cse31 v_DerPreprocessor_70) .cse32 v_DerPreprocessor_69)))) (store .cse35 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse35 |c_ULTIMATE.start_main_~list~0#1.base|) .cse30 v_DerPreprocessor_68)))) (.cse26 (select (select (let ((.cse34 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| v_DerPreprocessor_67) .cse31 |c_ULTIMATE.start_main_~m~0#1.base|) .cse32 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse34 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse34 |c_ULTIMATE.start_main_~list~0#1.base|) .cse30 |v_ULTIMATE.start_main_~n~0#1.base_21|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse33))) (let ((.cse27 (select .cse25 .cse26)) (.cse28 (select (select (let ((.cse29 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_21| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_21|) |v_ULTIMATE.start_main_~n~0#1.offset_21| v_DerPreprocessor_71) .cse31 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse32 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse29 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse29 |c_ULTIMATE.start_main_~list~0#1.base|) .cse30 |v_ULTIMATE.start_main_~n~0#1.offset_21|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse33))) (let ((.cse24 (select .cse27 .cse28))) (or (not (bvsle .cse24 (_ bv100 32))) (bvslt (select (select (store .cse25 .cse26 (store .cse27 .cse28 (bvadd (select (select .cse25 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) .cse24))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_21|))))))))))) (= (select .cse36 .cse37) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse38 .cse37)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (or (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= |c_ULTIMATE.start_main_~head~0#1.base| |c_ULTIMATE.start_main_~m~0#1.base|)) (= (select .cse38 .cse39) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse36 .cse39)))) is different from true [2021-11-13 02:30:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:34,611 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2021-11-13 02:30:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 02:30:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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 [2021-11-13 02:30:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:34,619 INFO L225 Difference]: With dead ends: 49 [2021-11-13 02:30:34,619 INFO L226 Difference]: Without dead ends: 42 [2021-11-13 02:30:34,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=146, Invalid=516, Unknown=4, NotChecked=204, Total=870 [2021-11-13 02:30:34,621 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3816.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.73ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 4041.21ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:34,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 71 Invalid, 273 Unknown, 0 Unchecked, 2.73ms Time], IncrementalHoareTripleChecker [14 Valid, 127 Invalid, 0 Unknown, 132 Unchecked, 4041.21ms Time] [2021-11-13 02:30:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-13 02:30:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2021-11-13 02:30:34,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.4375) internal successors, (46), 32 states have internal predecessors, (46), 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) [2021-11-13 02:30:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2021-11-13 02:30:34,632 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 14 [2021-11-13 02:30:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:34,633 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2021-11-13 02:30:34,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2021-11-13 02:30:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-11-13 02:30:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 02:30:34,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:34,635 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:34,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:34,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:35,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:35,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:30:35,241 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:30:35,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1483342752, now seen corresponding path program 1 times [2021-11-13 02:30:35,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:35,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8045733] [2021-11-13 02:30:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:35,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:35,243 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:35,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:30:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:35,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 02:30:35,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:35,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:35,496 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:30:35,496 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 [2021-11-13 02:30:35,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:35,511 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:35,512 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 [2021-11-13 02:30:35,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:35,537 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 [2021-11-13 02:30:35,581 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:30:35,581 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 [2021-11-13 02:30:35,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:35,605 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 [2021-11-13 02:30:35,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:35,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-13 02:30:35,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:39,197 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:30:39,198 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 242 treesize of output 224 [2021-11-13 02:30:39,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:39,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-11-13 02:30:39,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:39,866 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-13 02:30:39,866 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 271 treesize of output 247 [2021-11-13 02:30:40,087 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-13 02:30:40,087 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 273 treesize of output 240 [2021-11-13 02:30:40,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:40,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-13 02:30:40,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:40,216 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:30:40,216 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 222 treesize of output 174 [2021-11-13 02:30:40,217 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:30:40,265 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:30:40,265 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 147 treesize of output 155 [2021-11-13 02:30:41,055 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:30:41,056 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 154 treesize of output 97 [2021-11-13 02:30:41,114 INFO L354 Elim1Store]: treesize reduction 100, result has 9.9 percent of original size [2021-11-13 02:30:41,115 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 85 treesize of output 71 [2021-11-13 02:30:41,131 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:30:41,132 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 66 treesize of output 48 [2021-11-13 02:30:41,224 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:30:41,224 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 42 treesize of output 26 [2021-11-13 02:30:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:30:41,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:41,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:41,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-11-13 02:30:41,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:41,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-11-13 02:30:41,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:41,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-13 02:30:41,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:41,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-11-13 02:30:41,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:41,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 476 [2021-11-13 02:30:43,889 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_23| (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_23| (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse8 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse6 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_23|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_23|))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| |ULTIMATE.start_main_~x~0#1|) .cse6 v_DerPreprocessor_78) .cse7 v_DerPreprocessor_77)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_76)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| v_DerPreprocessor_75) .cse6 |c_ULTIMATE.start_main_~m~0#1.base|) .cse7 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse9 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_23|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| v_DerPreprocessor_79) .cse6 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse7 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.offset_23|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse2 .cse3 (bvadd (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse2 .cse3))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_23|))))) is different from false [2021-11-13 02:30:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:30:45,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:45,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8045733] [2021-11-13 02:30:45,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8045733] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:30:45,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [713452385] [2021-11-13 02:30:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:45,233 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:30:45,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:30:45,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:30:45,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-13 02:30:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:45,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:30:45,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:45,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,504 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:30:45,504 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 [2021-11-13 02:30:45,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,515 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:45,515 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 [2021-11-13 02:30:45,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,545 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 [2021-11-13 02:30:45,602 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:30:45,603 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 [2021-11-13 02:30:45,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,630 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 [2021-11-13 02:30:45,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:45,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-13 02:30:45,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:30:45,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:45,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:30:47,642 INFO L354 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2021-11-13 02:30:47,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 207 [2021-11-13 02:30:48,722 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-13 02:30:48,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-13 02:30:48,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:48,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-11-13 02:30:48,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:48,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:48,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:30:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:48,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:30:48,859 INFO L354 Elim1Store]: treesize reduction 64, result has 26.4 percent of original size [2021-11-13 02:30:48,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 218 treesize of output 198 [2021-11-13 02:30:48,870 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:48,871 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 179 treesize of output 152 [2021-11-13 02:30:48,872 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:30:48,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:48,883 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:30:48,884 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 146 treesize of output 133 [2021-11-13 02:30:48,930 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-13 02:30:48,930 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 127 treesize of output 135 [2021-11-13 02:30:49,827 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-13 02:30:49,828 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 137 treesize of output 92 [2021-11-13 02:30:49,899 INFO L354 Elim1Store]: treesize reduction 100, result has 9.9 percent of original size [2021-11-13 02:30:49,899 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 80 treesize of output 66 [2021-11-13 02:30:49,912 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-13 02:30:49,913 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 37 [2021-11-13 02:30:49,976 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:30:49,977 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 42 treesize of output 26 [2021-11-13 02:30:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:30:49,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:50,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:50,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 314 [2021-11-13 02:30:50,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:50,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-11-13 02:30:50,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:50,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-13 02:30:50,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:50,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 411 [2021-11-13 02:30:50,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:50,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 407 [2021-11-13 02:30:52,527 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_82 (_ BitVec 32)) (v_DerPreprocessor_83 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_84 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_25| (_ BitVec 32)) (v_DerPreprocessor_85 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_25|))))))) (bvsgt (select (select (let ((.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse0 (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) |ULTIMATE.start_main_~x~0#1|) (_ bv4 32) v_DerPreprocessor_85) (_ bv8 32) v_DerPreprocessor_84)))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_83)))) (.cse1 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) v_DerPreprocessor_82) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.base|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_25|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) v_DerPreprocessor_86) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 (_ bv0 32)))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)))) is different from false [2021-11-13 02:30:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:30:53,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [713452385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:30:53,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051173079] [2021-11-13 02:30:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:53,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:30:53,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:30:53,704 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:30:53,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-13 02:30:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:53,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:30:53,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:53,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:53,823 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 [2021-11-13 02:30:53,875 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:30:53,875 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 21 treesize of output 23 [2021-11-13 02:30:53,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:53,899 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 [2021-11-13 02:30:53,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:53,942 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 [2021-11-13 02:30:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:53,952 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 [2021-11-13 02:30:54,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:54,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-13 02:30:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:57,347 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:30:57,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 221 [2021-11-13 02:30:59,171 INFO L354 Elim1Store]: treesize reduction 242, result has 10.4 percent of original size [2021-11-13 02:30:59,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 295 treesize of output 274 [2021-11-13 02:30:59,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:59,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-13 02:30:59,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:59,616 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-13 02:30:59,617 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 228 treesize of output 204 [2021-11-13 02:30:59,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:30:59,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-11-13 02:30:59,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:30:59,745 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-13 02:30:59,746 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 219 treesize of output 171 [2021-11-13 02:30:59,746 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:30:59,795 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-13 02:30:59,796 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 144 treesize of output 152 [2021-11-13 02:31:00,626 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-13 02:31:00,626 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 [2021-11-13 02:31:00,685 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-13 02:31:00,685 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 [2021-11-13 02:31:00,699 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-13 02:31:00,699 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 70 treesize of output 52 [2021-11-13 02:31:00,809 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 02:31:00,809 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 [2021-11-13 02:31:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:31:00,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:00,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:00,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-11-13 02:31:00,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:00,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-11-13 02:31:00,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:00,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-13 02:31:00,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:00,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-11-13 02:31:00,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:00,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 476 [2021-11-13 02:31:03,375 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_27| (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_27| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse8 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse6 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_27|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_27|))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| |ULTIMATE.start_main_~x~0#1|) .cse6 v_DerPreprocessor_93) .cse7 v_DerPreprocessor_92)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_91)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| v_DerPreprocessor_90) .cse6 |c_ULTIMATE.start_main_~m~0#1.base|) .cse7 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse9 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_27|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| v_DerPreprocessor_94) .cse6 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse7 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.offset_27|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (store .cse2 .cse3 (bvadd (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse2 .cse3))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_27|))))) is different from false [2021-11-13 02:31:04,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-13 02:31:04,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051173079] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:31:04,841 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:31:04,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 19 [2021-11-13 02:31:04,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970744660] [2021-11-13 02:31:04,842 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:31:04,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 02:31:04,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:04,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 02:31:04,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=186, Unknown=3, NotChecked=90, Total=342 [2021-11-13 02:31:04,843 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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) [2021-11-13 02:31:08,787 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse32 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse33 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse31 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse34 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~m~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~m~0#1.base|)) (_ bv1 1))) (forall ((v_DerPreprocessor_82 (_ BitVec 32)) (v_DerPreprocessor_83 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_84 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_25| (_ BitVec 32)) (v_DerPreprocessor_85 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_25|))))))) (bvsgt (select (select (let ((.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse0 (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) |ULTIMATE.start_main_~x~0#1|) (_ bv4 32) v_DerPreprocessor_85) (_ bv8 32) v_DerPreprocessor_84)))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 v_DerPreprocessor_83)))) (.cse1 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) v_DerPreprocessor_82) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.base|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 |v_ULTIMATE.start_main_~n~0#1.base_25|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_25| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_25|) (_ bv0 32) v_DerPreprocessor_86) (_ bv4 32) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv8 32) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5 (_ bv0 32)))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse6))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)))) (forall ((v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_27| (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_27| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse17 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse14 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse15 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_27|)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_27|))) (let ((.cse9 (let ((.cse19 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| |ULTIMATE.start_main_~x~0#1|) .cse15 v_DerPreprocessor_93) .cse16 v_DerPreprocessor_92)))) (store .cse19 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse19 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 v_DerPreprocessor_91)))) (.cse10 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| v_DerPreprocessor_90) .cse15 |c_ULTIMATE.start_main_~m~0#1.base|) .cse16 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse18 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse18 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.base_27|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse9 .cse10 (let ((.cse11 (select .cse9 .cse10)) (.cse12 (select (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_27| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_27|) |v_ULTIMATE.start_main_~n~0#1.offset_27| v_DerPreprocessor_94) .cse15 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse16 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse13 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse13 |c_ULTIMATE.start_main_~list~0#1.base|) .cse14 |v_ULTIMATE.start_main_~n~0#1.offset_27|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse17))) (store .cse11 .cse12 (bvadd (select (select .cse9 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse11 .cse12))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_27|))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~head~0#1.offset|) (forall ((v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_23| (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_23| (_ BitVec 32))) (or (bvsgt (select (select (let ((.cse28 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse25 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse26 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_23|)) (.cse27 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_23|))) (let ((.cse20 (let ((.cse30 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| |ULTIMATE.start_main_~x~0#1|) .cse26 v_DerPreprocessor_78) .cse27 v_DerPreprocessor_77)))) (store .cse30 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse30 |c_ULTIMATE.start_main_~list~0#1.base|) .cse25 v_DerPreprocessor_76)))) (.cse21 (select (select (let ((.cse29 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| v_DerPreprocessor_75) .cse26 |c_ULTIMATE.start_main_~m~0#1.base|) .cse27 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse29 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse29 |c_ULTIMATE.start_main_~list~0#1.base|) .cse25 |v_ULTIMATE.start_main_~n~0#1.base_23|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse28))) (store .cse20 .cse21 (let ((.cse22 (select .cse20 .cse21)) (.cse23 (select (select (let ((.cse24 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_23| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_23|) |v_ULTIMATE.start_main_~n~0#1.offset_23| v_DerPreprocessor_79) .cse26 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse27 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse24 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse24 |c_ULTIMATE.start_main_~list~0#1.base|) .cse25 |v_ULTIMATE.start_main_~n~0#1.offset_23|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse28))) (store .cse22 .cse23 (bvadd (select (select .cse20 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse22 .cse23))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv90 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_23|))))) (= (_ bv100 32) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= (select .cse31 .cse32) |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~list~0#1.offset| |c_ULTIMATE.start_main_~head~0#1.offset|) (= |c_ULTIMATE.start_main_~head~0#1.base| (select .cse33 .cse32)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (_ bv1 32)) (= (select .cse33 .cse34) |c_ULTIMATE.start_main_~m~0#1.base|) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|)) (_ bv1 1))) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (= |c_ULTIMATE.start_main_~m~0#1.offset| (select .cse31 .cse34)))) is different from false [2021-11-13 02:31:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:14,938 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2021-11-13 02:31:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:31:14,939 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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 [2021-11-13 02:31:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:14,940 INFO L225 Difference]: With dead ends: 46 [2021-11-13 02:31:14,940 INFO L226 Difference]: Without dead ends: 39 [2021-11-13 02:31:14,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=95, Invalid=297, Unknown=4, NotChecked=156, Total=552 [2021-11-13 02:31:14,942 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5722.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 5925.26ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:14,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 202 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 101 Unchecked, 5925.26ms Time] [2021-11-13 02:31:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-13 02:31:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2021-11-13 02:31:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 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) [2021-11-13 02:31:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-11-13 02:31:14,952 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 14 [2021-11-13 02:31:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:14,952 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-11-13 02:31:14,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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) [2021-11-13 02:31:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2021-11-13 02:31:14,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 02:31:14,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:14,954 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:14,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-13 02:31:15,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:15,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:15,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:15,557 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:15,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2110558044, now seen corresponding path program 2 times [2021-11-13 02:31:15,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:15,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892373664] [2021-11-13 02:31:15,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:31:15,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:15,560 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:15,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 02:31:15,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:31:15,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:31:15,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-13 02:31:15,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:15,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:15,821 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 [2021-11-13 02:31:15,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:15,841 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 [2021-11-13 02:31:15,885 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:31:15,885 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 [2021-11-13 02:31:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:15,967 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:31:15,967 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 [2021-11-13 02:31:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:15,989 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:31:15,989 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 [2021-11-13 02:31:16,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:16,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-11-13 02:31:16,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:16,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:16,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:31:18,206 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:31:18,206 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 [2021-11-13 02:31:18,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:18,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-11-13 02:31:18,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:18,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:31:18,693 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-13 02:31:18,693 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 283 treesize of output 247 [2021-11-13 02:31:18,901 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-13 02:31:18,902 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 [2021-11-13 02:31:18,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:18,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-13 02:31:18,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:19,024 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:31:19,024 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 4 case distinctions, treesize of input 240 treesize of output 192 [2021-11-13 02:31:19,025 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:31:19,116 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-13 02:31:19,116 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 [2021-11-13 02:31:19,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:19,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-11-13 02:31:19,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:23,414 INFO L354 Elim1Store]: treesize reduction 944, result has 6.1 percent of original size [2021-11-13 02:31:23,414 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 370 treesize of output 346 [2021-11-13 02:31:24,438 INFO L354 Elim1Store]: treesize reduction 274, result has 9.3 percent of original size [2021-11-13 02:31:24,439 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 389 treesize of output 368 [2021-11-13 02:31:24,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:24,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 340 [2021-11-13 02:31:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:24,958 INFO L354 Elim1Store]: treesize reduction 1082, result has 6.0 percent of original size [2021-11-13 02:31:24,959 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 340 treesize of output 277 [2021-11-13 02:31:24,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:24,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-13 02:31:24,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:31:25,079 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-13 02:31:25,079 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 298 treesize of output 250 [2021-11-13 02:31:25,080 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:31:25,151 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-11-13 02:31:25,151 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 223 treesize of output 239 [2021-11-13 02:31:30,641 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-13 02:31:30,641 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 368 treesize of output 164 [2021-11-13 02:31:30,795 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-13 02:31:30,795 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 128 treesize of output 118 [2021-11-13 02:31:30,826 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-13 02:31:30,827 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 129 treesize of output 93 [2021-11-13 02:31:31,270 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:31:31,271 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 [2021-11-13 02:31:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:31,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:32,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:32,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-13 02:31:32,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:32,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-13 02:31:32,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:32,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-13 02:31:32,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:32,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-13 02:31:32,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:32,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-13 02:31:35,166 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1.offset_29| (_ BitVec 32)) (v_DerPreprocessor_101 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_29| (_ BitVec 32)) (v_DerPreprocessor_102 (_ BitVec 32)) (v_DerPreprocessor_103 (_ BitVec 32)) (v_DerPreprocessor_104 (_ BitVec 32)) (v_DerPreprocessor_105 (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse7 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_29|)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_29|))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| |ULTIMATE.start_main_~x~0#1|) .cse7 v_DerPreprocessor_104) .cse8 v_DerPreprocessor_103)))) (store .cse11 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_102)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| v_DerPreprocessor_101) .cse7 |c_ULTIMATE.start_main_~m~0#1.base|) .cse8 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_29|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| v_DerPreprocessor_105) .cse7 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_29|))) |c_ULTIMATE.start_main_~head~0#1.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#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_29|))) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-13 02:31:36,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:36,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1941 [2021-11-13 02:31:36,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:36,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2121 [2021-11-13 02:31:36,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:36,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2501 [2021-11-13 02:31:36,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:36,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2798 [2021-11-13 02:31:36,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:31:36,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2854 [2021-11-13 02:32:00,237 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_110 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_29| (_ BitVec 32)) (v_DerPreprocessor_101 (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_29| (_ BitVec 32)) (v_DerPreprocessor_102 (_ BitVec 32)) (v_DerPreprocessor_103 (_ BitVec 32)) (v_DerPreprocessor_104 (_ BitVec 32)) (v_DerPreprocessor_105 (_ BitVec 32)) (v_DerPreprocessor_106 (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_38| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.offset_30| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~n~0#1.base_30| (_ BitVec 32)) (v_DerPreprocessor_107 (_ BitVec 32)) (v_DerPreprocessor_108 (_ BitVec 32)) (v_DerPreprocessor_109 (_ BitVec 32))) (let ((.cse13 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse8 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_29|)) (.cse9 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_29|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse11 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~n~0#1.offset_30|)) (.cse12 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1.offset_30|))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_30| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~n~0#1.base_30|) |v_ULTIMATE.start_main_~n~0#1.offset_30| |ULTIMATE.start_main_~x~0#1|) .cse11 v_DerPreprocessor_109) .cse12 v_DerPreprocessor_108)))) (store .cse19 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse19 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_107))))) (store .cse18 |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select .cse18 |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| |v_ULTIMATE.start_main_~x~0#1_38|) .cse8 v_DerPreprocessor_104) .cse9 v_DerPreprocessor_103))))) (store .cse17 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse17 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 v_DerPreprocessor_102)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_30| (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_30|) |v_ULTIMATE.start_main_~n~0#1.offset_30| v_DerPreprocessor_106) .cse11 |c_ULTIMATE.start_main_~m~0#1.base|) .cse12 |c_ULTIMATE.start_main_~head~0#1.base|)))) (store .cse16 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse16 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_30|))))) (store .cse15 |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select .cse15 |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| v_DerPreprocessor_101) .cse8 |c_ULTIMATE.start_main_~m~0#1.base|) .cse9 |c_ULTIMATE.start_main_~head~0#1.base|))))) (store .cse14 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse14 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.base_29|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_30| (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_30|) |v_ULTIMATE.start_main_~n~0#1.offset_30| v_DerPreprocessor_110) .cse11 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse12 |c_ULTIMATE.start_main_~head~0#1.offset|)))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_30|))))) (store .cse7 |v_ULTIMATE.start_main_~n~0#1.base_29| (store (store (store (select .cse7 |v_ULTIMATE.start_main_~n~0#1.base_29|) |v_ULTIMATE.start_main_~n~0#1.offset_29| v_DerPreprocessor_105) .cse8 |c_ULTIMATE.start_main_~m~0#1.offset|) .cse9 |c_ULTIMATE.start_main_~head~0#1.offset|))))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse6 |v_ULTIMATE.start_main_~n~0#1.offset_29|))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_30|))))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |v_ULTIMATE.start_main_~n~0#1.base_30| (_ bv1 1)) |v_ULTIMATE.start_main_~n~0#1.base_29|)))) (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#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) (_ bv110 32)))))))) is different from false [2021-11-13 02:32:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-13 02:32:22,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:22,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892373664] [2021-11-13 02:32:22,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892373664] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:32:22,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1744004358] [2021-11-13 02:32:22,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:32:22,779 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:32:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:32:22,781 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:32:22,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36b750ad-8c98-4c6e-89da-cc2f01b2927b/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-13 02:32:23,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:32:23,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:32:23,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-13 02:32:23,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:23,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:23,193 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 02:32:23,193 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 [2021-11-13 02:32:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:23,212 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:32:23,212 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 [2021-11-13 02:32:23,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:23,239 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 [2021-11-13 02:32:23,291 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:32:23,292 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 21 treesize of output 23 [2021-11-13 02:32:23,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:23,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-13 02:32:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:23,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:23,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:32:24,183 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-13 02:32:24,184 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 176 treesize of output 158 [2021-11-13 02:32:24,414 INFO L354 Elim1Store]: treesize reduction 250, result has 10.1 percent of original size [2021-11-13 02:32:24,414 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 196 treesize of output 175 [2021-11-13 02:32:24,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:24,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-13 02:32:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:24,536 INFO L354 Elim1Store]: treesize reduction 146, result has 17.0 percent of original size [2021-11-13 02:32:24,536 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 163 treesize of output 121 [2021-11-13 02:32:24,630 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-13 02:32:24,631 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 100 treesize of output 123 [2021-11-13 02:32:24,634 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:32:25,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:25,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-11-13 02:32:25,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:25,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:32:25,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:25,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:25,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:32:28,106 INFO L354 Elim1Store]: treesize reduction 472, result has 6.9 percent of original size [2021-11-13 02:32:28,107 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 10 case distinctions, treesize of input 264 treesize of output 235 [2021-11-13 02:32:28,513 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-13 02:32:28,514 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 268 [2021-11-13 02:32:28,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:28,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:32:28,608 INFO L354 Elim1Store]: treesize reduction 35, result has 27.1 percent of original size [2021-11-13 02:32:28,609 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 1 case distinctions, treesize of input 269 treesize of output 245 [2021-11-13 02:32:28,623 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-13 02:32:28,623 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 245 treesize of output 211 [2021-11-13 02:32:28,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:32:28,641 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-13 02:32:28,641 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 212 treesize of output 192 [2021-11-13 02:32:28,644 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-13 02:32:28,704 INFO L354 Elim1Store]: treesize reduction 46, result has 31.3 percent of original size [2021-11-13 02:32:28,704 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 193 treesize of output 199 [2021-11-13 02:32:30,603 INFO L354 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2021-11-13 02:32:30,603 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 316 treesize of output 124 [2021-11-13 02:32:30,802 INFO L354 Elim1Store]: treesize reduction 142, result has 22.8 percent of original size [2021-11-13 02:32:30,802 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 94 treesize of output 95 [2021-11-13 02:32:30,815 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-13 02:32:30,815 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 81 [2021-11-13 02:32:32,387 INFO L354 Elim1Store]: treesize reduction 40, result has 29.8 percent of original size [2021-11-13 02:32:32,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 91 treesize of output 67 [2021-11-13 02:32:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:32,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:32,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:32,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-11-13 02:32:32,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:32,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 423 [2021-11-13 02:32:32,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:32,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-11-13 02:32:32,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:32:32,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-11-13 02:32:32,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28578 treesize of output 28434