./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:46:41,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:46:41,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:46:41,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:46:41,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:46:41,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:46:41,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:46:41,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:46:41,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:46:41,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:46:41,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:46:41,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:46:41,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:46:41,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:46:41,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:46:41,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:46:41,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:46:41,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:46:41,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:46:41,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:46:41,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:46:41,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:46:41,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:46:41,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:46:41,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:46:41,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:46:41,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:46:41,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:46:41,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:46:41,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:46:41,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:46:41,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:46:41,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:46:41,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:46:41,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:46:41,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:46:41,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:46:41,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:46:41,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:46:41,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:46:41,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:46:41,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:46:41,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:46:41,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:46:41,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:46:41,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:46:41,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:46:41,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:46:41,195 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:46:41,196 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:46:41,196 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:46:41,196 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:46:41,196 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:46:41,196 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:46:41,196 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:46:41,197 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:46:41,197 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:46:41,197 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:46:41,197 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:46:41,197 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:46:41,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:46:41,198 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:46:41,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:46:41,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:46:41,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:46:41,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:46:41,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:46:41,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:46:41,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:46:41,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:46:41,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:46:41,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:46:41,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:46:41,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a [2022-12-14 15:46:41,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:46:41,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:46:41,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:46:41,396 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:46:41,397 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:46:41,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-14 15:46:43,970 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:46:44,108 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:46:44,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-14 15:46:44,113 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/data/09ff1b9b9/7ab0ec0badde4c85ab1ebe92c5bd783b/FLAG25de0b2dc [2022-12-14 15:46:44,125 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/data/09ff1b9b9/7ab0ec0badde4c85ab1ebe92c5bd783b [2022-12-14 15:46:44,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:46:44,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:46:44,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:46:44,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:46:44,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:46:44,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5181d578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44, skipping insertion in model container [2022-12-14 15:46:44,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:46:44,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:46:44,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-14 15:46:44,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:46:44,286 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:46:44,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-14 15:46:44,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:46:44,309 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:46:44,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44 WrapperNode [2022-12-14 15:46:44,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:46:44,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:46:44,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:46:44,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:46:44,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,334 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-14 15:46:44,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:46:44,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:46:44,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:46:44,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:46:44,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:46:44,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:46:44,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:46:44,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:46:44,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (1/1) ... [2022-12-14 15:46:44,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:46:44,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:44,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:46:44,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:46:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:46:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:46:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:46:44,481 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:46:44,483 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:46:44,601 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:46:44,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:46:44,640 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 15:46:44,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:46:44 BoogieIcfgContainer [2022-12-14 15:46:44,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:46:44,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:46:44,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:46:44,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:46:44,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:46:44" (1/3) ... [2022-12-14 15:46:44,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271c2662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:46:44, skipping insertion in model container [2022-12-14 15:46:44,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:46:44" (2/3) ... [2022-12-14 15:46:44,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271c2662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:46:44, skipping insertion in model container [2022-12-14 15:46:44,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:46:44" (3/3) ... [2022-12-14 15:46:44,652 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2022-12-14 15:46:44,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:46:44,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:46:44,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:46:44,723 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e90b8ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:46:44,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:46:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2022-12-14 15:46:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:46:44,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:44,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:44,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1605924494, now seen corresponding path program 1 times [2022-12-14 15:46:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:44,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130092740] [2022-12-14 15:46:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:44,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:46:44,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130092740] [2022-12-14 15:46:44,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130092740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:46:44,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:46:44,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:46:44,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041734185] [2022-12-14 15:46:44,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:46:44,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:46:44,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:44,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:46:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:46:44,972 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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) [2022-12-14 15:46:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:45,005 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2022-12-14 15:46:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:46:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 [2022-12-14 15:46:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:45,015 INFO L225 Difference]: With dead ends: 21 [2022-12-14 15:46:45,015 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 15:46:45,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:46:45,021 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:45,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 15:46:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 15:46:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-12-14 15:46:45,045 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 7 [2022-12-14 15:46:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:45,045 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-12-14 15:46:45,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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) [2022-12-14 15:46:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2022-12-14 15:46:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 15:46:45,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:45,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:45,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:46:45,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1094204823, now seen corresponding path program 1 times [2022-12-14 15:46:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:45,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422616356] [2022-12-14 15:46:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:46:45,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:45,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422616356] [2022-12-14 15:46:45,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422616356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:46:45,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:46:45,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:46:45,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221246831] [2022-12-14 15:46:45,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:46:45,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:46:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:46:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:46:45,126 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:45,148 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-12-14 15:46:45,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:46:45,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 15:46:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:45,149 INFO L225 Difference]: With dead ends: 26 [2022-12-14 15:46:45,149 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 15:46:45,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:46:45,151 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:45,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:45,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 15:46:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2022-12-14 15:46:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-12-14 15:46:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-12-14 15:46:45,155 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 8 [2022-12-14 15:46:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:45,155 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-12-14 15:46:45,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2022-12-14 15:46:45,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:46:45,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:45,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:45,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:46:45,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash 556583755, now seen corresponding path program 1 times [2022-12-14 15:46:45,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:45,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637527063] [2022-12-14 15:46:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:45,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:46:45,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637527063] [2022-12-14 15:46:45,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637527063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:46:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187212261] [2022-12-14 15:46:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:45,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:45,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:45,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:46:45,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:46:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:45,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:46:45,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:46:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:46:45,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:46:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:46:45,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187212261] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:46:45,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [314789750] [2022-12-14 15:46:45,370 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:46:45,370 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:46:45,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:46:45,376 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:46:45,377 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:45,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,458 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:46:45,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:46:45,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:46:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,525 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-12-14 15:46:45,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:46:45,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:46:45,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,583 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-12-14 15:46:45,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-12-14 15:46:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,625 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-12-14 15:46:45,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-12-14 15:46:45,772 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 15:46:45,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 268 treesize of output 253 [2022-12-14 15:46:45,815 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 15:46:45,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 249 [2022-12-14 15:46:45,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:45,848 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-12-14 15:46:45,848 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 249 treesize of output 222 [2022-12-14 15:46:45,923 INFO L321 Elim1Store]: treesize reduction 155, result has 18.0 percent of original size [2022-12-14 15:46:45,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 239 treesize of output 257 [2022-12-14 15:46:46,018 INFO L321 Elim1Store]: treesize reduction 222, result has 18.7 percent of original size [2022-12-14 15:46:46,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 251 treesize of output 276 [2022-12-14 15:46:46,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:46,332 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 30 treesize of output 18 [2022-12-14 15:46:46,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2022-12-14 15:46:46,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:46,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:46:46,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:46:46,653 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '168#(and (= |ULTIMATE.start_main_#t~mem6#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~mem6#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= |ULTIMATE.start_main_#t~mem6#1.offset| 0) (= |ULTIMATE.start_main_#t~mem6#1.base| 0)) 1 0)) (<= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_main_~i~1#1| 0) (= 100000 |ULTIMATE.start_init_#in~size#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 100000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 100000 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:46:46,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:46:46,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:46:46,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2022-12-14 15:46:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910952180] [2022-12-14 15:46:46,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:46:46,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:46:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:46:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:46:46,655 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:46,696 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2022-12-14 15:46:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:46:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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 9 [2022-12-14 15:46:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:46,697 INFO L225 Difference]: With dead ends: 39 [2022-12-14 15:46:46,697 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 15:46:46,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:46:46,698 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:46,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 15:46:46,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 16. [2022-12-14 15:46:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-12-14 15:46:46,702 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2022-12-14 15:46:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:46,703 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-12-14 15:46:46,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:46,703 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-14 15:46:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:46:46,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:46,703 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:46,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:46:46,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:46,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:46,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash -797832114, now seen corresponding path program 2 times [2022-12-14 15:46:46,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:46,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955880809] [2022-12-14 15:46:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:46:47,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:47,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955880809] [2022-12-14 15:46:47,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955880809] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:46:47,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651523802] [2022-12-14 15:46:47,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:46:47,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:47,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:46:47,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:46:47,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:46:47,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:46:47,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:46:47,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:46:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 15:46:47,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:46:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 15:46:47,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651523802] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:46:47,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [221367405] [2022-12-14 15:46:47,275 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:46:47,275 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:46:47,276 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:46:47,276 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:46:47,276 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,303 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:46:47,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 15:46:47,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,321 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:46:47,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:46:47,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,341 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 21 [2022-12-14 15:46:47,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:47,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:47,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,393 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 15:46:47,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 76 [2022-12-14 15:46:47,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2022-12-14 15:46:47,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 257 [2022-12-14 15:46:47,534 INFO L321 Elim1Store]: treesize reduction 200, result has 20.6 percent of original size [2022-12-14 15:46:47,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 302 treesize of output 329 [2022-12-14 15:46:47,634 INFO L321 Elim1Store]: treesize reduction 276, result has 22.0 percent of original size [2022-12-14 15:46:47,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 305 treesize of output 348 [2022-12-14 15:46:47,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 280 [2022-12-14 15:46:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:47,674 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-12-14 15:46:47,674 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 290 treesize of output 263 [2022-12-14 15:46:47,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:47,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2022-12-14 15:46:47,787 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 30 treesize of output 18 [2022-12-14 15:46:47,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:46:47,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:47,883 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:46:48,185 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '336#(and (= |ULTIMATE.start_main_#t~mem6#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~mem6#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= |ULTIMATE.start_main_#t~mem6#1.offset| 0) (= |ULTIMATE.start_main_#t~mem6#1.base| 0)) 1 0)) (<= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_main_~i~1#1| 0) (= 100000 |ULTIMATE.start_init_#in~size#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 100000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 100000 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:46:48,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:46:48,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:46:48,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2022-12-14 15:46:48,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397739396] [2022-12-14 15:46:48,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:46:48,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 15:46:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:48,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 15:46:48,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:46:48,187 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) [2022-12-14 15:46:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:48,231 INFO L93 Difference]: Finished difference Result 67 states and 82 transitions. [2022-12-14 15:46:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:46:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) Word has length 13 [2022-12-14 15:46:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:48,233 INFO L225 Difference]: With dead ends: 67 [2022-12-14 15:46:48,233 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 15:46:48,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:46:48,234 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 91 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:48,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 45 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 15:46:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 21. [2022-12-14 15:46:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 15:46:48,237 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2022-12-14 15:46:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:48,238 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 15:46:48,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) [2022-12-14 15:46:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 15:46:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:46:48,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:48,238 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:48,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:46:48,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:48,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1786720361, now seen corresponding path program 3 times [2022-12-14 15:46:48,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:48,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077199406] [2022-12-14 15:46:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:48,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:48,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:48,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077199406] [2022-12-14 15:46:48,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077199406] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:46:48,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682904315] [2022-12-14 15:46:48,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 15:46:48,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:48,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:48,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:46:48,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:46:48,771 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 15:46:48,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:46:48,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:46:48,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:46:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:48,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:46:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:48,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682904315] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:46:48,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1625874489] [2022-12-14 15:46:48,919 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:46:48,919 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:46:48,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:46:48,919 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:46:48,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:48,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:48,939 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:46:48,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:46:48,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:48,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:46:48,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:48,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:48,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:48,996 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 15:46:48,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 76 [2022-12-14 15:46:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:49,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:49,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2022-12-14 15:46:49,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:49,016 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 21 [2022-12-14 15:46:49,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:49,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 257 [2022-12-14 15:46:49,196 INFO L321 Elim1Store]: treesize reduction 250, result has 29.4 percent of original size [2022-12-14 15:46:49,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 316 treesize of output 385 [2022-12-14 15:46:49,254 INFO L321 Elim1Store]: treesize reduction 136, result has 23.6 percent of original size [2022-12-14 15:46:49,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 291 treesize of output 318 [2022-12-14 15:46:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:49,282 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-12-14 15:46:49,283 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 290 treesize of output 263 [2022-12-14 15:46:49,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 280 [2022-12-14 15:46:49,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:46:49,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:49,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:49,397 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 30 treesize of output 18 [2022-12-14 15:46:49,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2022-12-14 15:46:49,457 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:46:49,669 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '589#(and (= |ULTIMATE.start_main_#t~mem6#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~mem6#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= |ULTIMATE.start_main_#t~mem6#1.offset| 0) (= |ULTIMATE.start_main_#t~mem6#1.base| 0)) 1 0)) (<= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_main_~i~1#1| 0) (= 100000 |ULTIMATE.start_init_#in~size#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 100000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 100000 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:46:49,669 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:46:49,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:46:49,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-12-14 15:46:49,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427189240] [2022-12-14 15:46:49,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:46:49,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 15:46:49,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 15:46:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=407, Unknown=0, NotChecked=0, Total=600 [2022-12-14 15:46:49,670 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 20 states, 20 states have (on average 1.35) 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) [2022-12-14 15:46:49,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:49,698 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2022-12-14 15:46:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 15:46:49,699 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.35) 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) Word has length 18 [2022-12-14 15:46:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:49,699 INFO L225 Difference]: With dead ends: 42 [2022-12-14 15:46:49,699 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 15:46:49,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=407, Unknown=0, NotChecked=0, Total=600 [2022-12-14 15:46:49,700 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:49,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 15:46:49,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 15:46:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-12-14 15:46:49,703 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 18 [2022-12-14 15:46:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:49,704 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-12-14 15:46:49,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.35) 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) [2022-12-14 15:46:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-12-14 15:46:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 15:46:49,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:49,705 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:49,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:46:49,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:49,906 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:49,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:49,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1877718990, now seen corresponding path program 4 times [2022-12-14 15:46:49,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:49,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685983055] [2022-12-14 15:46:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:49,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:50,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:50,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685983055] [2022-12-14 15:46:50,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685983055] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:46:50,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846059593] [2022-12-14 15:46:50,294 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 15:46:50,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:50,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:46:50,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:46:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:50,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 15:46:50,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:46:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:50,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:46:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:50,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846059593] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:46:50,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [422485365] [2022-12-14 15:46:50,880 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:46:50,880 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:46:50,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:46:50,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:46:50,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:50,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:50,903 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:46:50,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 15:46:50,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:50,923 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:46:50,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:46:50,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:50,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:50,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:50,972 INFO L321 Elim1Store]: treesize reduction 38, result has 49.3 percent of original size [2022-12-14 15:46:50,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 65 [2022-12-14 15:46:50,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:50,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:51,004 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 15:46:51,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 76 [2022-12-14 15:46:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:51,016 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 21 [2022-12-14 15:46:51,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:51,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 257 [2022-12-14 15:46:51,173 INFO L321 Elim1Store]: treesize reduction 250, result has 29.4 percent of original size [2022-12-14 15:46:51,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 316 treesize of output 385 [2022-12-14 15:46:51,216 INFO L321 Elim1Store]: treesize reduction 136, result has 23.6 percent of original size [2022-12-14 15:46:51,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 291 treesize of output 318 [2022-12-14 15:46:51,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:51,239 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-12-14 15:46:51,239 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 290 treesize of output 263 [2022-12-14 15:46:51,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 280 [2022-12-14 15:46:51,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:51,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:46:51,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:51,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2022-12-14 15:46:51,364 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 30 treesize of output 18 [2022-12-14 15:46:51,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:46:51,701 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '899#(and (= |ULTIMATE.start_main_#t~mem6#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~mem6#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= |ULTIMATE.start_main_#t~mem6#1.offset| 0) (= |ULTIMATE.start_main_#t~mem6#1.base| 0)) 1 0)) (<= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_main_~i~1#1| 0) (= 100000 |ULTIMATE.start_init_#in~size#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 100000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 100000 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:46:51,701 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:46:51,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:46:51,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-12-14 15:46:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516924229] [2022-12-14 15:46:51,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:46:51,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 15:46:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:51,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 15:46:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=760, Invalid=1310, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 15:46:51,705 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 41 states, 41 states have (on average 1.170731707317073) internal successors, (48), 40 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:51,745 INFO L93 Difference]: Finished difference Result 56 states and 75 transitions. [2022-12-14 15:46:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 15:46:51,746 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.170731707317073) internal successors, (48), 40 states have internal predecessors, (48), 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 25 [2022-12-14 15:46:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:51,747 INFO L225 Difference]: With dead ends: 56 [2022-12-14 15:46:51,747 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 15:46:51,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=760, Invalid=1310, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 15:46:51,749 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:51,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:46:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 15:46:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 15:46:51,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-12-14 15:46:51,753 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 25 [2022-12-14 15:46:51,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:51,754 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-12-14 15:46:51,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.170731707317073) internal successors, (48), 40 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:51,754 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-12-14 15:46:51,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 15:46:51,754 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:46:51,754 INFO L195 NwaCegarLoop]: trace histogram [26, 6, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:46:51,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:46:51,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 15:46:51,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:46:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:46:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1266337938, now seen corresponding path program 5 times [2022-12-14 15:46:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:46:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529869897] [2022-12-14 15:46:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:46:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:46:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:46:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:46:52,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:46:52,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529869897] [2022-12-14 15:46:52,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529869897] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:46:52,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674295732] [2022-12-14 15:46:52,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:46:52,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:46:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:46:52,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:46:52,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:46:52,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:46:52,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:46:52,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 15:46:52,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:46:52,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:46:53,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:46:53,004 INFO L350 Elim1Store]: Elim1 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 69 treesize of output 57 [2022-12-14 15:46:53,008 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 24 [2022-12-14 15:46:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-12-14 15:46:53,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:46:53,109 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 4 [2022-12-14 15:46:53,229 INFO L350 Elim1Store]: Elim1 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 50 treesize of output 42 [2022-12-14 15:46:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-12-14 15:46:53,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674295732] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:46:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [907904529] [2022-12-14 15:46:53,382 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:46:53,382 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:46:53,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:46:53,382 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:46:53,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:53,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,403 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:46:53,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:46:53,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:46:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,426 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-12-14 15:46:53,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:46:53,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,466 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-12-14 15:46:53,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-12-14 15:46:53,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:46:53,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:46:53,555 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 15:46:53,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 268 treesize of output 253 [2022-12-14 15:46:53,578 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 15:46:53,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 249 [2022-12-14 15:46:53,676 INFO L321 Elim1Store]: treesize reduction 196, result has 28.2 percent of original size [2022-12-14 15:46:53,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 253 treesize of output 304 [2022-12-14 15:46:53,715 INFO L321 Elim1Store]: treesize reduction 91, result has 20.9 percent of original size [2022-12-14 15:46:53,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 237 treesize of output 255 [2022-12-14 15:46:53,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:46:53,741 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-12-14 15:46:53,742 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 245 treesize of output 218 [2022-12-14 15:46:54,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:54,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:46:54,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2022-12-14 15:46:54,138 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 30 treesize of output 18 [2022-12-14 15:46:54,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:46:54,199 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:46:54,545 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1347#(and (= |ULTIMATE.start_main_#t~mem6#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~mem6#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= |ULTIMATE.start_main_#t~mem6#1.offset| 0) (= |ULTIMATE.start_main_#t~mem6#1.base| 0)) 1 0)) (<= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_main_~i~1#1| 0) (= 100000 |ULTIMATE.start_init_#in~size#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 100000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 100000 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:46:54,545 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:46:54,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:46:54,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 6, 6] total 38 [2022-12-14 15:46:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845602044] [2022-12-14 15:46:54,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:46:54,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-14 15:46:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:46:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-14 15:46:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=1405, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 15:46:54,547 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 39 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:56,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:46:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:46:57,877 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-12-14 15:46:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 15:46:57,878 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 38 states have internal predecessors, (52), 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 39 [2022-12-14 15:46:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:46:57,878 INFO L225 Difference]: With dead ends: 54 [2022-12-14 15:46:57,878 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:46:57,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1421, Invalid=4129, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 15:46:57,880 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:46:57,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 15:46:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:46:57,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:46:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:46:57,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-12-14 15:46:57,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:46:57,881 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:46:57,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:46:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:46:57,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:46:57,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 15:46:57,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:46:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:46:58,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:46:58,378 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|))) (and (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_init_~size#1| 100000) (or (<= |ULTIMATE.start_main_~i~1#1| 99999) (and (= |ULTIMATE.start_main_~flag~0#1| 1) (<= |ULTIMATE.start_main_~i~1#1| 100000))) (forall ((|ULTIMATE.start_main_~i~1#1| Int)) (or (not (= (select .cse0 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0)) (not (< |ULTIMATE.start_main_~i~1#1| 100000)) (< |ULTIMATE.start_main_~i~1#1| 99999))) (exists ((|v_ULTIMATE.start_init_~i~0#1_64| Int)) (and (not (= (select .cse0 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_init_~i~0#1_64| 4))) 0)) (< |v_ULTIMATE.start_init_~i~0#1_64| |ULTIMATE.start_init_~size#1|) (<= |ULTIMATE.start_init_~i~0#1| (+ |v_ULTIMATE.start_init_~i~0#1_64| 1)))) (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|))) [2022-12-14 15:46:58,378 INFO L895 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_~a#1.offset|)) (.cse1 (= |ULTIMATE.start_init_~size#1| 100000)) (.cse2 (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_init_~i~0#1| 0) .cse2) (and .cse0 .cse1 (exists ((|v_ULTIMATE.start_init_~i~0#1_64| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_init_~i~0#1_64| 4))) 0)) (< |v_ULTIMATE.start_init_~i~0#1_64| |ULTIMATE.start_init_~size#1|) (<= |ULTIMATE.start_init_~i~0#1| (+ |v_ULTIMATE.start_init_~i~0#1_64| 1)))) .cse2))) [2022-12-14 15:46:58,378 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-12-14 15:46:58,378 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2022-12-14 15:46:58,378 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-12-14 15:46:58,378 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-12-14 15:46:58,379 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2022-12-14 15:46:58,379 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:46:58,379 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:46:58,379 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2022-12-14 15:46:58,379 INFO L895 garLoopResultBuilder]: At program point L42-3(lines 42 46) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|))) (and (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_init_~size#1| 100000) (forall ((|ULTIMATE.start_main_~i~1#1| Int)) (or (not (= (select .cse0 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0)) (not (< |ULTIMATE.start_main_~i~1#1| 100000)) (< |ULTIMATE.start_main_~i~1#1| 99999))) (exists ((|v_ULTIMATE.start_init_~i~0#1_64| Int)) (and (not (= (select .cse0 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_init_~i~0#1_64| 4))) 0)) (< |v_ULTIMATE.start_init_~i~0#1_64| |ULTIMATE.start_init_~size#1|) (<= |ULTIMATE.start_init_~i~0#1| (+ |v_ULTIMATE.start_init_~i~0#1_64| 1)))) (= |ULTIMATE.start_main_~flag~0#1| 1) (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|))) [2022-12-14 15:46:58,382 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2022-12-14 15:46:58,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:46:58,390 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,395 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,395 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,395 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,395 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,396 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,396 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,396 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,398 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,399 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,399 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,399 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,400 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:46:58 BoogieIcfgContainer [2022-12-14 15:46:58,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:46:58,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:46:58,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:46:58,403 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:46:58,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:46:44" (3/4) ... [2022-12-14 15:46:58,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:46:58,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 15:46:58,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 15:46:58,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 15:46:58,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:46:58,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == a && size == 100000) && i == 0) && a == a) || (((a == a && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && a == a) [2022-12-14 15:46:58,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((a == a && size == 100000) && (i <= 99999 || (flag == 1 && i <= 100000))) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 < 99999)) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && a == a [2022-12-14 15:46:58,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((a == a && size == 100000) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 < 99999)) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && flag == 1) && a == a [2022-12-14 15:46:58,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:46:58,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:46:58,441 INFO L158 Benchmark]: Toolchain (without parser) took 14312.07ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 106.0MB in the beginning and 107.3MB in the end (delta: -1.3MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,441 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:46:58,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.74ms. Allocated memory is still 146.8MB. Free memory was 105.5MB in the beginning and 95.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.69ms. Allocated memory is still 146.8MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,442 INFO L158 Benchmark]: Boogie Preprocessor took 17.13ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:46:58,442 INFO L158 Benchmark]: RCFGBuilder took 290.70ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 78.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,442 INFO L158 Benchmark]: TraceAbstraction took 13756.90ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 78.2MB in the beginning and 109.4MB in the end (delta: -31.2MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,443 INFO L158 Benchmark]: Witness Printer took 37.60ms. Allocated memory is still 255.9MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:46:58,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.74ms. Allocated memory is still 146.8MB. Free memory was 105.5MB in the beginning and 95.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.69ms. Allocated memory is still 146.8MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.13ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.70ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 78.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13756.90ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 78.2MB in the beginning and 109.4MB in the end (delta: -31.2MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * Witness Printer took 37.60ms. Allocated memory is still 255.9MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.7s, OverallIterations: 7, TraceHistogramMax: 26, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 39 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=6, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 57 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 166 HoareAnnotationTreeSize, 3 FomulaSimplifications, 67 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1417 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 223 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 310 ConstructedInterpolants, 14 QuantifiedInterpolants, 1934 SizeOfPredicates, 25 NumberOfNonLiveVariables, 963 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 854/1567 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant [2022-12-14 15:46:58,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,451 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,451 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,451 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,452 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] Derived loop invariant: (((a == a && size == 100000) && i == 0) && a == a) || (((a == a && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && a == a) - InvariantResult [Line: 42]: Loop Invariant [2022-12-14 15:46:58,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,452 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,452 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,452 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,453 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,453 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,453 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,453 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,454 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,455 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] Derived loop invariant: ((((a == a && size == 100000) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 < 99999)) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && flag == 1) && a == a - InvariantResult [Line: 35]: Loop Invariant [2022-12-14 15:46:58,455 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,455 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,455 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,455 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,456 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,456 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,456 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,456 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,456 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] [2022-12-14 15:46:58,457 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_64,QUANTIFIED] Derived loop invariant: ((((a == a && size == 100000) && (i <= 99999 || (flag == 1 && i <= 100000))) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 < 99999)) && (\exists v_ULTIMATE.start_init_~i~0#1_64 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_64 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_64 < size) && i <= v_ULTIMATE.start_init_~i~0#1_64 + 1)) && a == a RESULT: Ultimate proved your program to be correct! [2022-12-14 15:46:58,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b4794a-472a-48ed-8b0c-fbba108ae2c4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE