./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS --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 c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- 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-8393723 [2022-11-19 07:36:34,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:36:34,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:36:34,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:36:34,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:36:34,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:36:34,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:36:34,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:36:34,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:36:34,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:36:34,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:36:34,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:36:34,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:36:34,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:36:34,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:36:34,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:36:34,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:36:34,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:36:34,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:36:34,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:36:34,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:36:34,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:36:34,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:36:34,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:36:34,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:36:34,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:36:34,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:36:34,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:36:34,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:36:34,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:36:34,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:36:34,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:36:34,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:36:34,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:36:34,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:36:34,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:36:34,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:36:34,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:36:34,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:36:34,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:36:34,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:36:34,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:36:34,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:36:34,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:36:34,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:36:34,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:36:34,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:36:34,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:36:34,200 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:36:34,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:36:34,201 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:36:34,201 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:36:34,202 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:36:34,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:36:34,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:36:34,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:36:34,203 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:36:34,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:36:34,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:36:34,204 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:36:34,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:36:34,205 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:36:34,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:36:34,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:36:34,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:36:34,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:36:34,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:36:34,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:36:34,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:36:34,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:36:34,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:36:34,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:36:34,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:36:34,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:36:34,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:34,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:36:34,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:36:34,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:36:34,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:36:34,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:36:34,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:36:34,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:36:34,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:36:34,211 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_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-11-19 07:36:34,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:36:34,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:36:34,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:36:34,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:36:34,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:36:34,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-19 07:36:34,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/data/d3c9576d9/2291dc51203847379b0a0d0bfb1e272b/FLAG38557db54 [2022-11-19 07:36:35,437 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:36:35,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-19 07:36:35,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/data/d3c9576d9/2291dc51203847379b0a0d0bfb1e272b/FLAG38557db54 [2022-11-19 07:36:35,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/data/d3c9576d9/2291dc51203847379b0a0d0bfb1e272b [2022-11-19 07:36:35,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:36:35,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:36:35,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:35,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:36:35,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:36:35,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:35" (1/1) ... [2022-11-19 07:36:35,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebe3ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35, skipping insertion in model container [2022-11-19 07:36:35,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:35" (1/1) ... [2022-11-19 07:36:35,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:36:35,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:36:36,153 WARN L234 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_ff13640d-8bec-4dba-a1b2-ceb7075db34d/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-19 07:36:36,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:36,177 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:36:36,254 WARN L234 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_ff13640d-8bec-4dba-a1b2-ceb7075db34d/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-19 07:36:36,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:36,293 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:36:36,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36 WrapperNode [2022-11-19 07:36:36,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:36,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:36,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:36:36,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:36:36,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,366 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111 [2022-11-19 07:36:36,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:36,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:36:36,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:36:36,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:36:36,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:36:36,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:36:36,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:36:36,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:36:36,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (1/1) ... [2022-11-19 07:36:36,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:36,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:36,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:36:36,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:36:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-19 07:36:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-19 07:36:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:36:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:36:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:36:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:36:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:36:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:36:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:36:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:36:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:36:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:36:36,726 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:36:36,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:36:36,787 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-19 07:36:37,041 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:36:37,118 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:36:37,118 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-19 07:36:37,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:37 BoogieIcfgContainer [2022-11-19 07:36:37,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:36:37,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:36:37,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:36:37,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:36:37,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:35" (1/3) ... [2022-11-19 07:36:37,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248f3f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:37, skipping insertion in model container [2022-11-19 07:36:37,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36" (2/3) ... [2022-11-19 07:36:37,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248f3f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:37, skipping insertion in model container [2022-11-19 07:36:37,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:37" (3/3) ... [2022-11-19 07:36:37,132 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-11-19 07:36:37,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:36:37,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:36:37,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:36:37,239 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;@3e5884e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:36:37,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:36:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:36:37,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:37,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:37,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1570243634, now seen corresponding path program 1 times [2022-11-19 07:36:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:37,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67323831] [2022-11-19 07:36:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:37,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:37,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:37,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67323831] [2022-11-19 07:36:37,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67323831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:36:37,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:36:37,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:36:37,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287454155] [2022-11-19 07:36:37,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:36:37,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:36:37,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:37,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:36:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:36:37,617 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 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) [2022-11-19 07:36:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:37,731 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2022-11-19 07:36:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:36:37,737 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 [2022-11-19 07:36:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:37,751 INFO L225 Difference]: With dead ends: 31 [2022-11-19 07:36:37,751 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 07:36:37,756 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 [2022-11-19 07:36:37,762 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:37,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:36:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 07:36:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 07:36:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-19 07:36:37,820 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 7 [2022-11-19 07:36:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:37,822 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-19 07:36:37,822 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) [2022-11-19 07:36:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2022-11-19 07:36:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:36:37,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:37,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:37,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:36:37,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:37,826 INFO L85 PathProgramCache]: Analyzing trace with hash 299858783, now seen corresponding path program 1 times [2022-11-19 07:36:37,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:37,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520610942] [2022-11-19 07:36:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:38,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:38,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520610942] [2022-11-19 07:36:38,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520610942] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:36:38,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121728011] [2022-11-19 07:36:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:38,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:38,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:36:38,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:36:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:38,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:36:38,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:38,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:38,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121728011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:38,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [944841066] [2022-11-19 07:36:38,454 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-19 07:36:38,454 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:36:38,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:36:38,464 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:36:38,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:36:38,653 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:36:38,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:36:38,739 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:36:38,740 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:36:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:36:38,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:36:38,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:38,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:39,286 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:36:39,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:36:39,348 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:36:39,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:36:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,180 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:36:40,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 315 treesize of output 293 [2022-11-19 07:36:40,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,305 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:36:40,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 319 treesize of output 296 [2022-11-19 07:36:40,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 299 [2022-11-19 07:36:40,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,480 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 07:36:40,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 455 treesize of output 483 [2022-11-19 07:36:40,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 317 [2022-11-19 07:36:40,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:40,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:40,666 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 07:36:40,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 448 treesize of output 472 [2022-11-19 07:36:41,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 78 [2022-11-19 07:36:41,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:41,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 17 [2022-11-19 07:36:41,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-19 07:36:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 757 treesize of output 704 [2022-11-19 07:36:41,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 684 treesize of output 670 [2022-11-19 07:36:41,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:36:41,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,608 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:36:41,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 720 treesize of output 667 [2022-11-19 07:36:41,766 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 12 treesize of output 9 [2022-11-19 07:36:41,793 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 6 treesize of output 5 [2022-11-19 07:36:41,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:41,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:41,892 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:36:41,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 07:36:41,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:41,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:41,987 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:36:41,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 07:36:42,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:36:42,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,069 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 27 treesize of output 11 [2022-11-19 07:36:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,106 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 57 treesize of output 11 [2022-11-19 07:36:42,133 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:36:42,133 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 07:36:42,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 07:36:42,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-11-19 07:36:42,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-11-19 07:36:42,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:42,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 07:36:42,359 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 12 treesize of output 9 [2022-11-19 07:36:42,368 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 6 treesize of output 5 [2022-11-19 07:36:42,395 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:36:42,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [944841066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:36:42,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:36:42,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 7 [2022-11-19 07:36:42,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917954161] [2022-11-19 07:36:42,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:36:42,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:36:42,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:36:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:36:42,717 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:42,789 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2022-11-19 07:36:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:36:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:36:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:42,790 INFO L225 Difference]: With dead ends: 19 [2022-11-19 07:36:42,790 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 07:36:42,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:36:42,792 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:42,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:36:42,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 07:36:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-19 07:36:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2022-11-19 07:36:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-19 07:36:42,797 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 10 [2022-11-19 07:36:42,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:42,797 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-19 07:36:42,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-19 07:36:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:36:42,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:42,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:42,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:43,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:43,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1448453533, now seen corresponding path program 1 times [2022-11-19 07:36:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058629447] [2022-11-19 07:36:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:36:43,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:43,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058629447] [2022-11-19 07:36:43,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058629447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:36:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958404896] [2022-11-19 07:36:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:43,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:43,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:36:43,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:36:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:43,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:36:43,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:36:43,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:36:43,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958404896] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:43,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [612980096] [2022-11-19 07:36:43,268 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:36:43,268 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:36:43,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:36:43,269 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:36:43,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:36:43,314 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:36:43,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:36:43,365 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:36:43,365 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:36:43,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:43,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:36:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:36:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:43,585 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:36:43,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:36:43,622 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:36:43,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:36:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:43,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,035 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:36:44,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 235 treesize of output 221 [2022-11-19 07:36:44,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,109 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:36:44,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 239 treesize of output 224 [2022-11-19 07:36:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 219 [2022-11-19 07:36:44,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 219 [2022-11-19 07:36:44,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,285 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 07:36:44,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 375 treesize of output 403 [2022-11-19 07:36:44,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 470 [2022-11-19 07:36:44,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,376 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:36:44,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 367 treesize of output 322 [2022-11-19 07:36:44,536 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 07:36:44,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 125 [2022-11-19 07:36:44,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 64 [2022-11-19 07:36:44,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:44,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2022-11-19 07:36:44,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 566 treesize of output 513 [2022-11-19 07:36:44,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:36:44,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:44,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 493 treesize of output 479 [2022-11-19 07:36:44,987 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 12 treesize of output 9 [2022-11-19 07:36:44,996 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 6 treesize of output 5 [2022-11-19 07:36:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:45,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:45,077 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:36:45,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 07:36:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:45,145 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:36:45,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 07:36:45,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:36:45,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,195 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 27 treesize of output 11 [2022-11-19 07:36:45,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,222 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 57 treesize of output 11 [2022-11-19 07:36:45,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 07:36:45,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 07:36:45,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:36:45,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-11-19 07:36:45,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:36:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:45,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 07:36:45,513 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 12 treesize of output 9 [2022-11-19 07:36:45,521 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 6 treesize of output 5 [2022-11-19 07:36:45,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:45,584 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 15 treesize of output 1 [2022-11-19 07:36:45,594 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 15 treesize of output 1 [2022-11-19 07:36:45,648 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 15 treesize of output 1 [2022-11-19 07:36:45,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:45,672 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 15 treesize of output 1 [2022-11-19 07:36:45,708 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 15 treesize of output 1 [2022-11-19 07:36:45,720 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 15 treesize of output 1 [2022-11-19 07:36:45,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:45,799 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:36:46,876 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '278#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:36:46,876 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:36:46,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:36:46,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-19 07:36:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474290489] [2022-11-19 07:36:46,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:36:46,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:36:46,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:46,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:36:46,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:36:46,878 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:46,955 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2022-11-19 07:36:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:36:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:36:46,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:46,957 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:36:46,957 INFO L226 Difference]: Without dead ends: 16 [2022-11-19 07:36:46,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:36:46,959 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:46,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:36:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-19 07:36:46,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-19 07:36:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-19 07:36:46,968 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 12 [2022-11-19 07:36:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:46,968 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-19 07:36:46,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-19 07:36:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:36:46,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:46,970 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:46,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:47,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:47,180 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1813339504, now seen corresponding path program 2 times [2022-11-19 07:36:47,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:47,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371348446] [2022-11-19 07:36:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:47,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:36:47,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:47,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371348446] [2022-11-19 07:36:47,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371348446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:36:47,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93753073] [2022-11-19 07:36:47,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:36:47,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:47,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:36:47,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:36:47,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 07:36:47,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:36:47,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:36:47,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:36:47,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:36:47,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93753073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:47,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1012467392] [2022-11-19 07:36:47,676 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:36:47,676 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:36:47,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:36:47,676 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:36:47,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:36:47,720 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:36:47,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:36:47,764 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:36:47,764 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:36:47,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:36:47,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:36:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:47,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:47,955 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-19 07:36:47,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-11-19 07:36:48,025 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-19 07:36:48,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-11-19 07:36:48,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,553 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-19 07:36:48,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 235 treesize of output 221 [2022-11-19 07:36:48,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,665 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:36:48,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 239 treesize of output 224 [2022-11-19 07:36:48,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 219 [2022-11-19 07:36:48,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:48,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:48,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:48,870 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 07:36:48,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 375 treesize of output 398 [2022-11-19 07:36:48,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 297 [2022-11-19 07:36:48,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:48,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:48,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:48,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 475 [2022-11-19 07:36:49,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2022-11-19 07:36:49,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:36:49,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-11-19 07:36:49,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,328 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-19 07:36:49,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 565 treesize of output 520 [2022-11-19 07:36:49,442 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:36:49,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 657 treesize of output 572 [2022-11-19 07:36:49,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 430 [2022-11-19 07:36:49,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 516 treesize of output 512 [2022-11-19 07:36:49,578 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 6 treesize of output 5 [2022-11-19 07:36:49,585 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 12 treesize of output 9 [2022-11-19 07:36:49,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:49,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:49,678 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:36:49,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 07:36:49,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:49,772 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:36:49,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 07:36:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:36:49,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,845 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 27 treesize of output 11 [2022-11-19 07:36:49,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,895 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 57 treesize of output 11 [2022-11-19 07:36:49,923 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:36:49,923 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 07:36:49,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:49,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 07:36:49,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-11-19 07:36:49,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:50,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 07:36:50,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-11-19 07:36:50,093 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 6 treesize of output 5 [2022-11-19 07:36:50,100 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 12 treesize of output 9 [2022-11-19 07:36:50,152 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 15 treesize of output 1 [2022-11-19 07:36:50,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:50,176 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 15 treesize of output 1 [2022-11-19 07:36:50,227 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 15 treesize of output 1 [2022-11-19 07:36:50,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:50,243 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 15 treesize of output 1 [2022-11-19 07:36:50,300 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 15 treesize of output 1 [2022-11-19 07:36:50,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:50,324 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 15 treesize of output 1 [2022-11-19 07:36:50,393 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:36:51,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '443#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:36:51,510 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:36:51,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:36:51,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-11-19 07:36:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842058939] [2022-11-19 07:36:51,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:36:51,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:36:51,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:36:51,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:36:51,513 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:51,681 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2022-11-19 07:36:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:36:51,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 07:36:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:51,683 INFO L225 Difference]: With dead ends: 34 [2022-11-19 07:36:51,683 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:36:51,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:36:51,684 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 54 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:51,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 21 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:36:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:36:51,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2022-11-19 07:36:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-11-19 07:36:51,694 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 15 [2022-11-19 07:36:51,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:51,695 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-19 07:36:51,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-11-19 07:36:51,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:36:51,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:51,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:51,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 07:36:51,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:51,898 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2110536562, now seen corresponding path program 3 times [2022-11-19 07:36:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:51,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101991765] [2022-11-19 07:36:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:52,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:36:52,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:52,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101991765] [2022-11-19 07:36:52,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101991765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:36:52,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405352945] [2022-11-19 07:36:52,142 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:36:52,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:52,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:52,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:36:52,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:36:52,290 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:36:52,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:36:52,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:36:52,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:36:52,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:36:52,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405352945] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:52,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1755801057] [2022-11-19 07:36:52,355 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:36:52,355 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:36:52,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:36:52,356 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:36:52,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:36:52,419 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:36:52,419 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:36:52,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:36:52,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:36:52,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:36:52,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:52,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:36:52,656 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:36:52,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:36:52,700 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:36:52,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:36:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:52,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,085 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:36:53,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 229 [2022-11-19 07:36:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,160 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:36:53,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 247 treesize of output 232 [2022-11-19 07:36:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 227 [2022-11-19 07:36:53,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,327 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 07:36:53,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 383 treesize of output 406 [2022-11-19 07:36:53,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 305 [2022-11-19 07:36:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 483 [2022-11-19 07:36:53,588 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 07:36:53,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 214 treesize of output 157 [2022-11-19 07:36:53,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 101 [2022-11-19 07:36:53,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2022-11-19 07:36:53,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 60 [2022-11-19 07:36:53,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 36 [2022-11-19 07:36:53,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2022-11-19 07:36:53,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:53,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:53,764 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:36:53,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 612 treesize of output 567 [2022-11-19 07:36:54,011 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 6 treesize of output 5 [2022-11-19 07:36:54,018 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 12 treesize of output 9 [2022-11-19 07:36:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:54,133 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:36:54,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 07:36:54,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:54,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:54,208 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 07:36:54,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 07:36:54,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:36:54,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,281 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 57 treesize of output 11 [2022-11-19 07:36:54,326 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:36:54,327 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 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 07:36:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 07:36:54,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-11-19 07:36:54,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:36:54,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:36:54,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 07:36:54,460 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 12 treesize of output 9 [2022-11-19 07:36:54,466 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 6 treesize of output 5 [2022-11-19 07:36:54,504 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 15 treesize of output 1 [2022-11-19 07:36:54,520 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 15 treesize of output 1 [2022-11-19 07:36:54,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:54,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:54,598 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 15 treesize of output 1 [2022-11-19 07:36:54,606 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 15 treesize of output 1 [2022-11-19 07:36:54,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:54,673 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 15 treesize of output 1 [2022-11-19 07:36:54,689 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 15 treesize of output 1 [2022-11-19 07:36:54,771 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:36:55,907 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '642#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:36:55,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:36:55,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:36:55,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-19 07:36:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784903757] [2022-11-19 07:36:55,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:36:55,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:36:55,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:36:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:36:55,909 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-19 07:36:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:56,127 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-11-19 07:36:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:36:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 17 [2022-11-19 07:36:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:56,129 INFO L225 Difference]: With dead ends: 33 [2022-11-19 07:36:56,129 INFO L226 Difference]: Without dead ends: 26 [2022-11-19 07:36:56,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2022-11-19 07:36:56,130 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 34 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:56,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 34 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:36:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-19 07:36:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2022-11-19 07:36:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 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) [2022-11-19 07:36:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-19 07:36:56,139 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 17 [2022-11-19 07:36:56,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:56,139 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-19 07:36:56,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-19 07:36:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-19 07:36:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:36:56,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:56,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:36:56,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:36:56,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:56,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:56,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:56,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1814988096, now seen corresponding path program 1 times [2022-11-19 07:36:56,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:56,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824073356] [2022-11-19 07:36:56,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:56,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:57,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:36:57,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824073356] [2022-11-19 07:36:57,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824073356] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:36:57,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279011221] [2022-11-19 07:36:57,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:57,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:36:57,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:57,947 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:36:57,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:36:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:58,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-19 07:36:58,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:58,150 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 6 treesize of output 5 [2022-11-19 07:36:58,234 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:36:58,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:36:58,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:36:58,304 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:36:58,305 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2022-11-19 07:36:58,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 07:36:58,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:36:58,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:36:58,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:36:58,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2022-11-19 07:36:58,700 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 14 treesize of output 16 [2022-11-19 07:36:58,838 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 22 treesize of output 10 [2022-11-19 07:36:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:58,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:58,963 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_650 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_650 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2022-11-19 07:36:59,203 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| |c_ULTIMATE.start_dll_update_at_~data#1|))) (.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((v_ArrVal_649 Int) (v_ArrVal_650 (Array Int Int))) (<= (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse1 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_649)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_649 Int) (v_ArrVal_650 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse1 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_649)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))))) is different from false [2022-11-19 07:37:03,456 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:03,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 78 [2022-11-19 07:37:03,491 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-19 07:37:03,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 86 [2022-11-19 07:37:03,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:03,518 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 1 case distinctions, treesize of input 7 treesize of output 6 [2022-11-19 07:37:03,544 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:03,545 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 42 [2022-11-19 07:37:03,552 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 78 treesize of output 66 [2022-11-19 07:37:03,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-11-19 07:37:03,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2022-11-19 07:37:03,587 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:03,587 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 64 treesize of output 40 [2022-11-19 07:37:03,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-19 07:37:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-19 07:37:03,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279011221] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:03,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1247596565] [2022-11-19 07:37:03,729 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:37:03,730 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:03,730 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:03,730 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:03,730 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:03,783 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:37:03,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:37:03,835 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:37:03,835 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:37:03,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:03,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:37:03,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:37:03,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:03,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:04,038 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-19 07:37:04,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-11-19 07:37:04,129 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-19 07:37:04,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-11-19 07:37:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:04,800 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-19 07:37:04,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 323 treesize of output 301 [2022-11-19 07:37:04,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:04,928 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:37:04,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 327 treesize of output 304 [2022-11-19 07:37:04,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:04,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 307 [2022-11-19 07:37:05,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 307 [2022-11-19 07:37:05,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:05,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:05,181 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 07:37:05,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 463 treesize of output 481 [2022-11-19 07:37:05,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:05,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 534 treesize of output 569 [2022-11-19 07:37:05,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 104 [2022-11-19 07:37:05,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 68 [2022-11-19 07:37:05,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2022-11-19 07:37:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:05,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:05,784 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-19 07:37:05,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 804 treesize of output 751 [2022-11-19 07:37:05,894 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:37:05,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 899 treesize of output 800 [2022-11-19 07:37:05,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 782 treesize of output 646 [2022-11-19 07:37:05,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 763 treesize of output 733 [2022-11-19 07:37:06,115 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 6 treesize of output 5 [2022-11-19 07:37:06,125 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 12 treesize of output 9 [2022-11-19 07:37:06,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:06,269 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:37:06,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 07:37:06,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:06,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:06,359 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 07:37:06,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 07:37:06,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:37:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,434 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 57 treesize of output 11 [2022-11-19 07:37:06,469 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:37:06,470 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 07:37:06,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 07:37:06,511 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:37:06,512 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 07:37:06,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:06,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 07:37:06,622 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 6 treesize of output 5 [2022-11-19 07:37:06,630 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 12 treesize of output 9 [2022-11-19 07:37:06,682 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 15 treesize of output 1 [2022-11-19 07:37:06,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:06,705 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 15 treesize of output 1 [2022-11-19 07:37:06,790 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 15 treesize of output 1 [2022-11-19 07:37:06,799 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 15 treesize of output 1 [2022-11-19 07:37:06,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:06,928 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 15 treesize of output 1 [2022-11-19 07:37:06,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:06,952 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 15 treesize of output 1 [2022-11-19 07:37:06,998 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:08,590 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '887#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:37:08,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:37:08,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:08,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2022-11-19 07:37:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236048988] [2022-11-19 07:37:08,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:08,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-19 07:37:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:08,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-19 07:37:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1792, Unknown=22, NotChecked=174, Total=2162 [2022-11-19 07:37:08,593 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:10,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:10,222 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2022-11-19 07:37:10,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 07:37:10,223 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:37:10,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:10,224 INFO L225 Difference]: With dead ends: 52 [2022-11-19 07:37:10,224 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 07:37:10,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=402, Invalid=3006, Unknown=22, NotChecked=230, Total=3660 [2022-11-19 07:37:10,226 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 167 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:10,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 104 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 0 Unknown, 216 Unchecked, 0.6s Time] [2022-11-19 07:37:10,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 07:37:10,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 27. [2022-11-19 07:37:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-19 07:37:10,244 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 18 [2022-11-19 07:37:10,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:10,245 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-19 07:37:10,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:10,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-19 07:37:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:37:10,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:10,246 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:10,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:10,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:37:10,454 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:10,454 INFO L85 PathProgramCache]: Analyzing trace with hash -280268398, now seen corresponding path program 2 times [2022-11-19 07:37:10,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:10,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939054486] [2022-11-19 07:37:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 07:37:10,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939054486] [2022-11-19 07:37:10,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939054486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:37:10,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:37:10,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:37:10,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989099686] [2022-11-19 07:37:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:37:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:37:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:37:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:37:10,543 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-19 07:37:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:10,632 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2022-11-19 07:37:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:37:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Word has length 19 [2022-11-19 07:37:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:10,633 INFO L225 Difference]: With dead ends: 40 [2022-11-19 07:37:10,633 INFO L226 Difference]: Without dead ends: 30 [2022-11-19 07:37:10,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:37:10,636 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:10,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-19 07:37:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-11-19 07:37:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-19 07:37:10,657 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 19 [2022-11-19 07:37:10,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:10,657 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-19 07:37:10,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-19 07:37:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-19 07:37:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:37:10,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:10,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:10,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:37:10,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:10,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:10,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1047799090, now seen corresponding path program 3 times [2022-11-19 07:37:10,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:10,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042625894] [2022-11-19 07:37:10,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:10,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:37:10,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:10,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042625894] [2022-11-19 07:37:10,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042625894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:10,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199293335] [2022-11-19 07:37:10,809 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:37:10,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:10,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:10,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:10,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:37:10,994 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:37:10,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:37:10,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:37:11,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:37:11,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:37:11,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199293335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:11,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1706252371] [2022-11-19 07:37:11,063 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:37:11,063 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:11,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:11,064 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:11,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:11,121 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:37:11,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:37:11,181 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:37:11,182 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:37:11,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:37:11,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:37:11,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:11,437 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:37:11,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:37:11,473 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:37:11,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:37:11,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,810 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:37:11,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 235 treesize of output 221 [2022-11-19 07:37:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,887 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:37:11,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 239 treesize of output 224 [2022-11-19 07:37:11,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 219 [2022-11-19 07:37:11,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:11,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:11,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:11,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:11,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,017 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 07:37:12,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 375 treesize of output 403 [2022-11-19 07:37:12,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 231 [2022-11-19 07:37:12,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,152 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 07:37:12,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 362 treesize of output 386 [2022-11-19 07:37:12,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 330 [2022-11-19 07:37:12,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:37:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 296 [2022-11-19 07:37:12,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-11-19 07:37:12,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-11-19 07:37:12,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:37:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,484 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:37:12,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 346 treesize of output 301 [2022-11-19 07:37:12,739 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 6 treesize of output 5 [2022-11-19 07:37:12,746 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 12 treesize of output 9 [2022-11-19 07:37:12,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,829 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:37:12,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 07:37:12,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:12,920 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:37:12,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 07:37:12,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:12,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:37:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:13,033 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 57 treesize of output 11 [2022-11-19 07:37:13,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 07:37:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:13,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 07:37:13,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:37:13,153 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 07:37:13,153 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-11-19 07:37:13,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:13,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:13,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 92 [2022-11-19 07:37:13,195 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 12 treesize of output 9 [2022-11-19 07:37:13,202 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 6 treesize of output 5 [2022-11-19 07:37:13,249 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 15 treesize of output 1 [2022-11-19 07:37:13,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:13,276 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 15 treesize of output 1 [2022-11-19 07:37:13,339 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 15 treesize of output 1 [2022-11-19 07:37:13,352 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 15 treesize of output 1 [2022-11-19 07:37:13,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:13,464 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 15 treesize of output 1 [2022-11-19 07:37:13,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:13,480 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 15 treesize of output 1 [2022-11-19 07:37:13,537 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:14,552 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1287#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:37:14,552 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:37:14,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:14,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-11-19 07:37:14,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670796817] [2022-11-19 07:37:14,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:14,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:37:14,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:37:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:37:14,555 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-19 07:37:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:14,690 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2022-11-19 07:37:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:37:14,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) Word has length 19 [2022-11-19 07:37:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:14,692 INFO L225 Difference]: With dead ends: 43 [2022-11-19 07:37:14,692 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 07:37:14,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:37:14,694 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:14,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 23 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:14,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 07:37:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2022-11-19 07:37:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 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) [2022-11-19 07:37:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-19 07:37:14,708 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 19 [2022-11-19 07:37:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:14,708 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-19 07:37:14,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-19 07:37:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-19 07:37:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:37:14,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:14,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:14,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:14,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:14,910 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash 428634211, now seen corresponding path program 1 times [2022-11-19 07:37:14,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:14,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971219376] [2022-11-19 07:37:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:14,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:37:15,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:15,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971219376] [2022-11-19 07:37:15,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971219376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:37:15,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:37:15,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:37:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161282982] [2022-11-19 07:37:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:37:15,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:37:15,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:37:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:37:15,020 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-19 07:37:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:15,107 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-11-19 07:37:15,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:37:15,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Word has length 19 [2022-11-19 07:37:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:15,108 INFO L225 Difference]: With dead ends: 36 [2022-11-19 07:37:15,108 INFO L226 Difference]: Without dead ends: 31 [2022-11-19 07:37:15,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:37:15,109 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:15,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-19 07:37:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-19 07:37:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-19 07:37:15,126 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 19 [2022-11-19 07:37:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:15,127 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-19 07:37:15,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-19 07:37:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-19 07:37:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:37:15,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:15,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:15,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:37:15,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash 993692610, now seen corresponding path program 1 times [2022-11-19 07:37:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:15,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239299415] [2022-11-19 07:37:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:15,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:37:15,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:15,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239299415] [2022-11-19 07:37:15,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239299415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:15,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261944670] [2022-11-19 07:37:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:15,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:15,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:15,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:15,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:37:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:15,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:37:15,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:37:15,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:37:15,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261944670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:15,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [347960613] [2022-11-19 07:37:15,521 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:37:15,521 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:15,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:15,522 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:15,522 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:15,575 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:37:15,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:37:15,633 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:37:15,634 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:37:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:15,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:37:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:15,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:37:15,830 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-19 07:37:15,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-11-19 07:37:15,918 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-19 07:37:15,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-11-19 07:37:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,465 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-19 07:37:16,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 235 treesize of output 221 [2022-11-19 07:37:16,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,551 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:37:16,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 239 treesize of output 224 [2022-11-19 07:37:16,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 219 [2022-11-19 07:37:16,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:16,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:16,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:16,713 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 07:37:16,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 375 treesize of output 398 [2022-11-19 07:37:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 297 [2022-11-19 07:37:16,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:16,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:16,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 475 [2022-11-19 07:37:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:16,901 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-19 07:37:16,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 367 treesize of output 322 [2022-11-19 07:37:17,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2022-11-19 07:37:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:37:17,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-11-19 07:37:17,266 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:37:17,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 657 treesize of output 572 [2022-11-19 07:37:17,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 430 [2022-11-19 07:37:17,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 516 treesize of output 512 [2022-11-19 07:37:17,382 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 6 treesize of output 5 [2022-11-19 07:37:17,389 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 12 treesize of output 9 [2022-11-19 07:37:17,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:17,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:17,493 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:37:17,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 07:37:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:17,561 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:37:17,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 07:37:17,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:37:17,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,642 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 57 treesize of output 11 [2022-11-19 07:37:17,698 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:37:17,699 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 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 07:37:17,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 07:37:17,738 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 07:37:17,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-11-19 07:37:17,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:17,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 91 [2022-11-19 07:37:17,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:37:17,799 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 12 treesize of output 9 [2022-11-19 07:37:17,806 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 6 treesize of output 5 [2022-11-19 07:37:17,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:17,864 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 15 treesize of output 1 [2022-11-19 07:37:17,873 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 15 treesize of output 1 [2022-11-19 07:37:17,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:17,987 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 15 treesize of output 1 [2022-11-19 07:37:17,996 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 15 treesize of output 1 [2022-11-19 07:37:18,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:18,090 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 15 treesize of output 1 [2022-11-19 07:37:18,099 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 15 treesize of output 1 [2022-11-19 07:37:18,201 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:19,769 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1653#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-19 07:37:19,769 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:37:19,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:19,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-11-19 07:37:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771099215] [2022-11-19 07:37:19,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:19,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:37:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:37:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:37:19,772 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:19,880 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-19 07:37:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:37:19,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 07:37:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:19,882 INFO L225 Difference]: With dead ends: 36 [2022-11-19 07:37:19,882 INFO L226 Difference]: Without dead ends: 31 [2022-11-19 07:37:19,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:37:19,883 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:19,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-19 07:37:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-11-19 07:37:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-19 07:37:19,906 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 21 [2022-11-19 07:37:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:19,908 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-19 07:37:19,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-19 07:37:19,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:37:19,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:19,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:19,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:20,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:37:20,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:20,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1880581264, now seen corresponding path program 4 times [2022-11-19 07:37:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:20,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790514930] [2022-11-19 07:37:20,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:20,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:37:20,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790514930] [2022-11-19 07:37:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790514930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124689672] [2022-11-19 07:37:20,299 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:37:20,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:20,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:20,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:20,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:37:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:20,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:37:20,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 07:37:20,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:37:20,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124689672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:37:20,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:37:20,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-11-19 07:37:20,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520601028] [2022-11-19 07:37:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:37:20,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:37:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:37:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:37:20,621 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:20,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:20,692 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-19 07:37:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:37:20,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 07:37:20,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:20,693 INFO L225 Difference]: With dead ends: 35 [2022-11-19 07:37:20,693 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:37:20,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:37:20,694 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:20,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:37:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-19 07:37:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 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) [2022-11-19 07:37:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-19 07:37:20,706 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2022-11-19 07:37:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:20,707 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-19 07:37:20,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-19 07:37:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:37:20,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:20,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:20,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:20,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:20,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash 738277921, now seen corresponding path program 1 times [2022-11-19 07:37:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:20,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798627262] [2022-11-19 07:37:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:20,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:37:22,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:22,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798627262] [2022-11-19 07:37:22,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798627262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:22,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209533231] [2022-11-19 07:37:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:22,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:22,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:22,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:22,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 07:37:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:22,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-19 07:37:22,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:22,783 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 6 treesize of output 5 [2022-11-19 07:37:22,885 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:37:22,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:37:22,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:37:22,951 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:37:22,952 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2022-11-19 07:37:23,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:23,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:23,159 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:23,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:37:23,432 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:37:23,433 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 72 [2022-11-19 07:37:23,444 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 31 treesize of output 21 [2022-11-19 07:37:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:23,451 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 34 treesize of output 36 [2022-11-19 07:37:23,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2022-11-19 07:37:23,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 [2022-11-19 07:37:23,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 10 [2022-11-19 07:37:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:37:23,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:24,320 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 86 treesize of output 64 [2022-11-19 07:37:24,339 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 86 treesize of output 64 [2022-11-19 07:37:24,359 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~len~0#1| 1)) (.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (<= |c_ULTIMATE.start_dll_update_at_~data#1| .cse0) (<= .cse0 |c_ULTIMATE.start_dll_update_at_~data#1|) (forall ((v_ArrVal_1500 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1500) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) (forall ((v_ArrVal_1501 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1501) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1) |c_ULTIMATE.start_dll_update_at_~head#1.base|)))) is different from false [2022-11-19 07:37:24,379 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:24,380 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 50 treesize of output 43 [2022-11-19 07:37:24,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-11-19 07:37:24,891 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:24,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 89 [2022-11-19 07:37:24,943 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-19 07:37:24,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 91 [2022-11-19 07:37:24,971 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:24,972 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 68 [2022-11-19 07:37:25,017 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-19 07:37:25,018 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 2 case distinctions, treesize of input 10 treesize of output 11 [2022-11-19 07:37:25,038 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 13 treesize of output 11 [2022-11-19 07:37:25,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:25,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-19 07:37:25,049 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:37:25,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 9 [2022-11-19 07:37:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-19 07:37:25,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209533231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:25,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [950732916] [2022-11-19 07:37:25,309 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:37:25,309 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:25,309 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:25,309 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:25,309 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:25,362 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:37:25,362 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:37:25,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:37:25,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:25,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:25,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:37:25,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:37:25,581 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:37:25,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:37:25,616 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:37:25,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:37:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:25,953 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:37:25,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 229 [2022-11-19 07:37:25,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,038 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:37:26,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 247 treesize of output 232 [2022-11-19 07:37:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 227 [2022-11-19 07:37:26,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,216 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 07:37:26,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 383 treesize of output 406 [2022-11-19 07:37:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 305 [2022-11-19 07:37:26,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 478 [2022-11-19 07:37:26,399 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 07:37:26,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 165 [2022-11-19 07:37:26,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 113 [2022-11-19 07:37:26,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2022-11-19 07:37:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,532 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:37:26,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 397 treesize of output 352 [2022-11-19 07:37:26,705 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-19 07:37:26,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 725 treesize of output 644 [2022-11-19 07:37:26,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 564 [2022-11-19 07:37:26,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 579 treesize of output 559 [2022-11-19 07:37:26,845 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 6 treesize of output 5 [2022-11-19 07:37:26,852 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 12 treesize of output 9 [2022-11-19 07:37:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:26,964 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:37:26,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 07:37:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:26,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:27,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:27,026 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 07:37:27,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-19 07:37:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:37:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,075 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 27 treesize of output 11 [2022-11-19 07:37:27,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,116 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 57 treesize of output 11 [2022-11-19 07:37:27,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 07:37:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 07:37:27,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 07:37:27,223 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 07:37:27,224 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-11-19 07:37:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:27,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 92 [2022-11-19 07:37:27,264 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 12 treesize of output 9 [2022-11-19 07:37:27,270 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 6 treesize of output 5 [2022-11-19 07:37:27,315 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 15 treesize of output 1 [2022-11-19 07:37:27,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:27,333 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 15 treesize of output 1 [2022-11-19 07:37:27,396 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 15 treesize of output 1 [2022-11-19 07:37:27,407 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 15 treesize of output 1 [2022-11-19 07:37:27,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:27,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:27,520 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 15 treesize of output 1 [2022-11-19 07:37:27,530 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 15 treesize of output 1 [2022-11-19 07:37:27,987 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:29,625 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2111#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-19 07:37:29,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:37:29,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:29,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 46 [2022-11-19 07:37:29,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646961019] [2022-11-19 07:37:29,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:29,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-19 07:37:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-19 07:37:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2561, Unknown=1, NotChecked=102, Total=2862 [2022-11-19 07:37:29,629 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:31,007 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-19 07:37:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:37:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 07:37:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:31,008 INFO L225 Difference]: With dead ends: 27 [2022-11-19 07:37:31,008 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 07:37:31,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=378, Invalid=3785, Unknown=1, NotChecked=126, Total=4290 [2022-11-19 07:37:31,010 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 62 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:31,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 59 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 383 Invalid, 0 Unknown, 77 Unchecked, 0.6s Time] [2022-11-19 07:37:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 07:37:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 07:37:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-19 07:37:31,022 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2022-11-19 07:37:31,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:31,022 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-19 07:37:31,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-19 07:37:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:37:31,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:31,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:31,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:31,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 07:37:31,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:37:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1410357154, now seen corresponding path program 2 times [2022-11-19 07:37:31,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:31,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969008302] [2022-11-19 07:37:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:31,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:37:31,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:31,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969008302] [2022-11-19 07:37:31,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969008302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:31,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250570077] [2022-11-19 07:37:31,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:37:31,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:31,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:31,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:31,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:37:31,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 07:37:31,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:37:31,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:37:31,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:37:31,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:37:31,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250570077] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:31,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1898267090] [2022-11-19 07:37:31,641 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 07:37:31,641 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:31,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:31,642 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:31,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:31,703 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:37:31,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 07:37:31,750 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:37:31,751 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 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:37:31,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:37:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 07:37:31,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:31,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 07:37:31,937 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 07:37:31,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 07:37:31,970 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:37:31,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 07:37:32,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,318 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:37:32,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 229 [2022-11-19 07:37:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,398 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 07:37:32,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 247 treesize of output 232 [2022-11-19 07:37:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 227 [2022-11-19 07:37:32,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,546 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 07:37:32,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 383 treesize of output 401 [2022-11-19 07:37:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 305 [2022-11-19 07:37:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 483 [2022-11-19 07:37:32,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:32,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:32,680 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 07:37:32,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 397 treesize of output 352 [2022-11-19 07:37:32,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 65 [2022-11-19 07:37:32,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:37:32,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2022-11-19 07:37:32,875 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:37:32,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 561 treesize of output 488 [2022-11-19 07:37:32,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 470 treesize of output 386 [2022-11-19 07:37:32,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 356 treesize of output 326 [2022-11-19 07:37:33,064 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 12 treesize of output 9 [2022-11-19 07:37:33,070 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 6 treesize of output 5 [2022-11-19 07:37:33,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:33,187 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:37:33,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 07:37:33,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:33,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:37:33,247 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 07:37:33,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 07:37:33,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 07:37:33,352 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:37:33,352 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 07:37:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 07:37:33,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,397 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 57 treesize of output 11 [2022-11-19 07:37:33,427 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 07:37:33,428 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 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 07:37:33,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:37:33,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 07:37:33,521 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 6 treesize of output 5 [2022-11-19 07:37:33,527 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 12 treesize of output 9 [2022-11-19 07:37:33,568 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 15 treesize of output 1 [2022-11-19 07:37:33,577 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 15 treesize of output 1 [2022-11-19 07:37:33,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:33,669 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 15 treesize of output 1 [2022-11-19 07:37:33,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:33,688 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 15 treesize of output 1 [2022-11-19 07:37:33,765 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 15 treesize of output 1 [2022-11-19 07:37:33,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:37:33,785 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 15 treesize of output 1 [2022-11-19 07:37:34,237 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:35,286 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2366#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-19 07:37:35,287 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:37:35,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:35,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2022-11-19 07:37:35,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841050688] [2022-11-19 07:37:35,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:35,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:37:35,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:37:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:37:35,288 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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) [2022-11-19 07:37:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:35,397 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-19 07:37:35,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:37:35,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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) Word has length 23 [2022-11-19 07:37:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:35,397 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:37:35,397 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:37:35,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:37:35,399 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:35,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:37:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:37:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:37:35,400 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) [2022-11-19 07:37:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:37:35,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-19 07:37:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:35,400 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:37:35,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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) [2022-11-19 07:37:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:37:35,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:37:35,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:37:35,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:35,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 07:37:35,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:37:41,077 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2022-11-19 07:37:41,077 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-11-19 07:37:41,077 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-11-19 07:37:41,077 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-11-19 07:37:41,077 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-11-19 07:37:41,078 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:37:41,078 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-11-19 07:37:41,078 INFO L895 garLoopResultBuilder]: At program point L633-3(lines 633 638) the Hoare annotation is: (let ((.cse22 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse24 (select .cse22 4))) (let ((.cse1 (not (= 0 .cse24))) (.cse3 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse24))) (.cse12 (= (select .cse22 8) 0)) (.cse19 (= (let ((.cse23 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse22 .cse23)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse23))) (+ |ULTIMATE.start_main_~len~0#1| 1))) (.cse20 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse9 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse10 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse11 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse13 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse15 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse16 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse17 (<= 0 |#NULL.offset|)) (.cse18 (<= 0 |#StackHeapBarrier|)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~0#1| 1) .cse5 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse9 .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse21))))) [2022-11-19 07:37:41,078 INFO L902 garLoopResultBuilder]: At program point L642(lines 624 643) the Hoare annotation is: true [2022-11-19 07:37:41,078 INFO L895 garLoopResultBuilder]: At program point L618-2(lines 618 621) the Hoare annotation is: (let ((.cse34 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse33 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse35 (select .cse33 4)) (.cse29 (select .cse34 4))) (let ((.cse9 (+ |ULTIMATE.start_main_~len~0#1| 1)) (.cse10 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse14 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|)) (.cse0 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse1 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse28 (not (= 0 .cse29))) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse3 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse4 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse35))) (.cse30 (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_dll_update_at_~head#1.base|)) (.cse5 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse6 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse8 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse11 (<= |#NULL.offset| 0)) (.cse12 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse13 (not (= .cse35 0))) (.cse15 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse16 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse17 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse18 (= (select .cse34 8) 0)) (.cse19 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse20 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse21 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse22 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse23 (= (select .cse33 8) 0)) (.cse24 (<= 0 |#NULL.offset|)) (.cse31 (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_dll_update_at_~head#1.offset|)) (.cse25 (<= 0 |#StackHeapBarrier|)) (.cse26 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse27 (= |#NULL.base| 0))) (or (let ((.cse7 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (forall ((v_ArrVal_1501 (Array Int Int))) (= (select (select (store |#memory_$Pointer$.base| |ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1501) |ULTIMATE.start_main_~s~0#1.base|) .cse7) |ULTIMATE.start_dll_update_at_~head#1.base|)) .cse8 (<= |ULTIMATE.start_dll_update_at_~data#1| .cse9) .cse10 .cse11 .cse12 .cse13 .cse14 (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= .cse9 |ULTIMATE.start_dll_update_at_~data#1|) .cse15 (not (= |ULTIMATE.start_dll_update_at_~head#1.base| 0)) .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (= |ULTIMATE.start_dll_update_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse7)) .cse23 .cse24 .cse25 .cse26 .cse27)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_dll_update_at_~index#1|) .cse28 .cse2 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse29)) .cse3 .cse4 .cse30 .cse5 (= .cse9 |ULTIMATE.start_dll_update_at_~data#1|) .cse6 (<= |ULTIMATE.start_dll_update_at_~index#1| 1) .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse31 .cse25 .cse26 .cse27) (let ((.cse32 (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 .cse28 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse30 .cse5 .cse6 .cse8 .cse11 .cse12 .cse13 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_update_at_~head#1.base|) 4) |ULTIMATE.start_dll_update_at_~head#1.base|)) .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (<= |ULTIMATE.start_dll_update_at_~data#1| .cse32) .cse23 .cse24 .cse31 .cse25 (<= .cse32 |ULTIMATE.start_dll_update_at_~data#1|) (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse26 .cse27)))))) [2022-11-19 07:37:41,081 INFO L899 garLoopResultBuilder]: For program point L635(lines 635 637) no Hoare annotation was computed. [2022-11-19 07:37:41,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2022-11-19 07:37:41,081 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 611 614) the Hoare annotation is: (let ((.cse31 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse33 (select .cse31 4)) (.cse12 (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|))) (let ((.cse7 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (= .cse12 |ULTIMATE.start_main_~expected~0#1|)) (.cse2 (not (= 0 .cse33))) (.cse3 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse33))) (.cse5 (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~len~0#1|)) (.cse29 (= |ULTIMATE.start_dll_get_data_at_~head#1.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse8 (<= |#NULL.offset| 0)) (.cse9 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse10 (<= |ULTIMATE.start_dll_update_at_~index#1| 0)) (.cse11 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse13 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse15 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse16 (= (select .cse31 8) 0)) (.cse17 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse18 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse19 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse20 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse21 (<= 0 |#NULL.offset|)) (.cse22 (<= 0 |#StackHeapBarrier|)) (.cse23 (= (let ((.cse32 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse31 .cse32)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse32))) (+ |ULTIMATE.start_main_~len~0#1| 1))) (.cse24 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse25 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse9 .cse10 .cse11 (= 3 .cse12) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (not (= |ULTIMATE.start_dll_get_data_at_~head#1.base| 0)) .cse23 .cse24 .cse25) (let ((.cse28 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (let ((.cse26 (let ((.cse30 (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4))) (select (select |#memory_int| (select .cse28 .cse30)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_get_data_at_~head#1.base|) .cse30)))) (.cse27 (select .cse28 4))) (and (<= 1 |ULTIMATE.start_dll_get_data_at_~index#1|) .cse0 .cse2 .cse3 (= .cse26 |ULTIMATE.start_main_~expected~0#1|) .cse4 (= .cse26 3) (not (= |ULTIMATE.start_dll_get_data_at_~head#1.base| .cse27)) (= (select .cse28 8) 0) .cse5 .cse29 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 1) .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= 0 .cse27)) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25))) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse29 .cse6 .cse8 .cse9 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) .cse10 .cse11 .cse13 .cse14 (= 2 .cse12) (= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25))))) [2022-11-19 07:37:41,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:37:41,082 INFO L895 garLoopResultBuilder]: At program point L636(lines 624 643) the Hoare annotation is: false [2022-11-19 07:37:41,082 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse9 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse14 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse15 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse16 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse17 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse18 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse7 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse19 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse8 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse11 (<= 0 |#NULL.offset|)) (.cse12 (<= 0 |#StackHeapBarrier|)) (.cse13 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_dll_create_~len#1|) .cse13) (and .cse14 .cse0 .cse1 .cse15 .cse16 .cse17 .cse18 .cse2 .cse3 (<= 1 |ULTIMATE.start_dll_create_~len#1|) .cse4 .cse5 .cse6 .cse7 .cse19 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (let ((.cse21 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse20 (select .cse21 4))) (and .cse14 .cse0 .cse1 .cse15 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse20)) .cse16 .cse17 .cse18 .cse2 .cse3 (not (= .cse20 0)) .cse4 .cse5 .cse6 .cse7 .cse19 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) .cse8 (= (select .cse21 8) 0) .cse11 .cse12 .cse13))))) [2022-11-19 07:37:41,082 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2022-11-19 07:37:41,082 INFO L895 garLoopResultBuilder]: At program point L629-3(lines 629 632) the Hoare annotation is: (let ((.cse18 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse30 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse31 (select .cse30 4)) (.cse32 (select .cse18 4))) (let ((.cse1 (not (= 0 .cse32))) (.cse3 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse32))) (.cse4 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse7 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|)) (.cse11 (= (select .cse18 8) 0)) (.cse14 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse15 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse22 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse23 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse24 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse31))) (.cse25 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse26 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse27 (not (= .cse31 0))) (.cse8 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse10 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse12 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse28 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse13 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse29 (= (select .cse30 8) 0)) (.cse16 (<= 0 |#NULL.offset|)) (.cse17 (<= 0 |#StackHeapBarrier|)) (.cse20 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (= (let ((.cse19 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse18 .cse19)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse19))) (+ |ULTIMATE.start_main_~len~0#1| 1)) .cse20 .cse21) (and .cse22 .cse0 .cse1 .cse2 .cse3 .cse23 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse24 (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_dll_update_at_~head#1.base|) .cse25 .cse26 .cse4 .cse5 .cse6 .cse27 .cse7 (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_dll_update_at_~data#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse28 .cse13 .cse14 .cse15 .cse29 .cse16 (<= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse17 (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse20 .cse21) (and .cse22 .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse23 .cse24 .cse25 .cse26 .cse5 .cse6 .cse27 (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= |ULTIMATE.start_dll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse8 .cse9 (<= |ULTIMATE.start_dll_create_~len#1| 0) .cse10 .cse12 .cse28 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) .cse13 (= |ULTIMATE.start_dll_create_#res#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse29 .cse16 .cse17 .cse20 .cse21))))) [2022-11-19 07:37:41,085 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1] [2022-11-19 07:37:41,087 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:37:41,095 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,096 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,099 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,105 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,105 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,106 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,106 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,106 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,107 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,107 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,107 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,108 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,108 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,111 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,111 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,112 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,112 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,112 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,113 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,113 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,113 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,114 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,114 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,114 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,115 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,115 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,115 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,116 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,116 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,116 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,117 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,117 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,117 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,118 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,118 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,121 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,121 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,122 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,122 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,122 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,123 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,123 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,123 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,124 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,124 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,124 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,125 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,125 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,125 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,125 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,126 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,126 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,126 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,127 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,127 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,127 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,127 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,131 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,131 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,132 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,134 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,134 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,134 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,136 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,137 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,137 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,137 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,138 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,138 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,138 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,138 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,139 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,139 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,140 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,140 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,140 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,141 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,143 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,144 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,144 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,144 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,144 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,145 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,145 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,146 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,146 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,146 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,147 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,147 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,147 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,148 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,151 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,152 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,152 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-19 07:37:41,152 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,153 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,153 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,153 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,154 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,154 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,154 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,161 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,161 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,161 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,162 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,162 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,162 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,163 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,163 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,163 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,166 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,167 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,167 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-19 07:37:41,167 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,168 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,168 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,168 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,168 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,169 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,169 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,169 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,170 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,170 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,170 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,171 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,171 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,171 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,172 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,172 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:41 BoogieIcfgContainer [2022-11-19 07:37:41,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:37:41,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:37:41,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:37:41,176 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:37:41,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:37" (3/4) ... [2022-11-19 07:37:41,179 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:37:41,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-19 07:37:41,189 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-19 07:37:41,189 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-19 07:37:41,189 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:37:41,190 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:37:41,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((1 <= data && 2 <= \old(len)) && #NULL <= 0) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && len == len) && #NULL == 0) || ((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && 1 <= len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-19 07:37:41,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && 1 <= i) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && len == data) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && i <= 1) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && index == 0) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((new_head == 0 && 1 <= data) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && head == \result) && \result == s) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && \result == s) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) [2022-11-19 07:37:41,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || (((((((((((((((((1 <= data && 2 <= \old(len)) && len <= 2) && #NULL <= 0) && data <= 1) && index <= 0) && 0 <= i) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-19 07:37:41,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && (forall v_ArrVal_1501 : [int]int :: #memory_$Pointer$[head := v_ArrVal_1501][s][s + 4] == head)) && len <= 2) && data <= len + 1) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && len + 1 <= data) && data == 1) && !(head == 0)) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && head == #memory_$Pointer$[s][s + 4]) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) || ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 1 <= index) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && len + 1 == data) && \valid[new_head] == 1) && index <= 1) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0)) || (((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && !(#memory_$Pointer$[head][4] == head)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && data <= len + i) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && len + i <= data) && index == 0) && s == 0) && #NULL == 0) [2022-11-19 07:37:41,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && 3 == unknown-#memory_int-unknown[head][head]) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && !(head == 0)) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((1 <= index && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == expected) && !(s == #memory_$Pointer$[s][4])) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == 3) && !(head == #memory_$Pointer$[head][4])) && #memory_$Pointer$[head][8] == 0) && i + 1 <= len) && head == 0) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && index <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && !(0 == #memory_$Pointer$[head][4])) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && head == 0) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 2 == unknown-#memory_int-unknown[head][head]) && index == 0) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) [2022-11-19 07:37:41,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:37:41,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:37:41,226 INFO L158 Benchmark]: Toolchain (without parser) took 65539.89ms. Allocated memory was 127.9MB in the beginning and 526.4MB in the end (delta: 398.5MB). Free memory was 94.0MB in the beginning and 490.5MB in the end (delta: -396.5MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,227 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:37:41,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.80ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 95.2MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.31ms. Allocated memory is still 127.9MB. Free memory was 95.2MB in the beginning and 92.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:37:41,227 INFO L158 Benchmark]: Boogie Preprocessor took 33.97ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,227 INFO L158 Benchmark]: RCFGBuilder took 720.18ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 72.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,228 INFO L158 Benchmark]: TraceAbstraction took 64050.52ms. Allocated memory was 127.9MB in the beginning and 526.4MB in the end (delta: 398.5MB). Free memory was 72.1MB in the beginning and 493.6MB in the end (delta: -421.5MB). Peak memory consumption was 292.0MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,228 INFO L158 Benchmark]: Witness Printer took 50.44ms. Allocated memory is still 526.4MB. Free memory was 493.6MB in the beginning and 490.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:37:41,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.80ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 95.2MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.31ms. Allocated memory is still 127.9MB. Free memory was 95.2MB in the beginning and 92.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.97ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 720.18ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 72.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 64050.52ms. Allocated memory was 127.9MB in the beginning and 526.4MB in the end (delta: 398.5MB). Free memory was 72.1MB in the beginning and 493.6MB in the end (delta: -421.5MB). Peak memory consumption was 292.0MB. Max. memory is 16.1GB. * Witness Printer took 50.44ms. Allocated memory is still 526.4MB. Free memory was 493.6MB in the beginning and 490.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - 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_ArrVal_1501,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - 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_ArrVal_1501,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * 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: 641]: 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 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.9s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 432 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 432 mSDsluCounter, 381 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 293 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 81 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 598 GetRequests, 337 SyntacticMatches, 23 SemanticMatches, 238 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 20.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=10, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 66 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 30 NumberOfFragments, 1692 HoareAnnotationTreeSize, 13 FomulaSimplifications, 2775 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 11 FomulaSimplificationsInter, 48853 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 401 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 526 ConstructedInterpolants, 13 QuantifiedInterpolants, 3452 SizeOfPredicates, 85 NumberOfNonLiveVariables, 2554 ConjunctsInSsa, 227 ConjunctsInUnsatCore, 32 InterpolantComputations, 4 PerfectInterpolantSequences, 225/344 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: OVERALL_TIME: 3.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME: 3.8s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 14, TOOLS_QUANTIFIERELIM_TIME: 3.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 27, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 3.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 62, DAG_COMPRESSION_RETAINED_NODES: 28, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant [2022-11-19 07:37:41,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,251 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || (((((((((((((((((1 <= data && 2 <= \old(len)) && len <= 2) && #NULL <= 0) && data <= 1) && index <= 0) && 0 <= i) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 611]: Loop Invariant [2022-11-19 07:37:41,256 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,256 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,256 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,256 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,257 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,257 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,257 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,257 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,259 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,259 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,259 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,259 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,261 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,261 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,262 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && 3 == unknown-#memory_int-unknown[head][head]) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && !(head == 0)) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((1 <= index && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == expected) && !(s == #memory_$Pointer$[s][4])) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == 3) && !(head == #memory_$Pointer$[head][4])) && #memory_$Pointer$[head][8] == 0) && i + 1 <= len) && head == 0) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && index <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && !(0 == #memory_$Pointer$[head][4])) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && head == 0) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 2 == unknown-#memory_int-unknown[head][head]) && index == 0) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant [2022-11-19 07:37:41,269 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((((((((1 <= data && 2 <= \old(len)) && #NULL <= 0) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && len == len) && #NULL == 0) || ((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && 1 <= len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant [2022-11-19 07:37:41,272 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,272 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,275 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,275 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,275 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,275 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,277 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,277 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,277 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,277 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,280 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && 1 <= i) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && len == data) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && i <= 1) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && index == 0) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((new_head == 0 && 1 <= data) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && head == \result) && \result == s) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && \result == s) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant [2022-11-19 07:37:41,281 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,282 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,282 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-19 07:37:41,282 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,284 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,284 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,284 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,284 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,285 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,285 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,285 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,285 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,286 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,286 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,287 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,287 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,288 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-19 07:37:41,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:37:41,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:37:41,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && (forall v_ArrVal_1501 : [int]int :: #memory_$Pointer$[head := v_ArrVal_1501][s][s + 4] == head)) && len <= 2) && data <= len + 1) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && len + 1 <= data) && data == 1) && !(head == 0)) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && head == #memory_$Pointer$[s][s + 4]) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) || ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 1 <= index) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && len + 1 == data) && \valid[new_head] == 1) && index <= 1) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0)) || (((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && !(#memory_$Pointer$[head][4] == head)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && data <= len + i) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && len + i <= data) && index == 0) && s == 0) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:37:41,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff13640d-8bec-4dba-a1b2-ceb7075db34d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE