./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:51:15,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:51:15,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:51:15,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:51:15,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:51:15,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:51:15,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:51:15,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:51:15,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:51:15,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:51:15,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:51:15,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:51:15,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:51:15,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:51:15,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:51:15,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:51:15,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:51:15,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:51:15,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:51:15,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:51:15,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:51:15,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:51:15,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:51:15,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:51:15,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:51:15,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:51:15,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:51:15,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:51:15,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:51:15,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:51:15,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:51:15,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:51:15,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:51:15,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:51:15,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:51:15,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:51:15,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:51:15,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:51:15,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:51:15,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:51:15,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:51:15,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:51:15,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:51:15,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:51:15,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:51:15,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:51:15,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:51:15,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:51:15,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:51:15,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:51:15,292 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:51:15,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:51:15,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:51:15,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:51:15,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:51:15,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:51:15,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:51:15,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:51:15,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:51:15,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:51:15,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:51:15,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:51:15,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:51:15,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:51:15,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:51:15,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:51:15,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:51:15,296 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:51:15,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:51:15,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:51:15,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:51:15,297 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_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 [2021-12-07 00:51:15,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:51:15,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:51:15,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:51:15,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:51:15,514 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:51:15,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-12-07 00:51:15,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/data/fa88c05f0/78c5820b27484a4daace541886e66f8c/FLAGe5da55d77 [2021-12-07 00:51:15,994 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:51:15,995 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-12-07 00:51:16,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/data/fa88c05f0/78c5820b27484a4daace541886e66f8c/FLAGe5da55d77 [2021-12-07 00:51:16,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/data/fa88c05f0/78c5820b27484a4daace541886e66f8c [2021-12-07 00:51:16,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:51:16,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:51:16,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:51:16,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:51:16,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:51:16,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc1e390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16, skipping insertion in model container [2021-12-07 00:51:16,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:51:16,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:51:16,255 WARN L230 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_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-12-07 00:51:16,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:51:16,263 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:51:16,294 WARN L230 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_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-12-07 00:51:16,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:51:16,318 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:51:16,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16 WrapperNode [2021-12-07 00:51:16,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:51:16,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:51:16,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:51:16,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:51:16,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,361 INFO L137 Inliner]: procedures = 127, calls = 49, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 146 [2021-12-07 00:51:16,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:51:16,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:51:16,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:51:16,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:51:16,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:51:16,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:51:16,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:51:16,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:51:16,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (1/1) ... [2021-12-07 00:51:16,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:51:16,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:51:16,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:51:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:51:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:51:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:51:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-07 00:51:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-07 00:51:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:51:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:51:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:51:16,544 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:51:16,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:51:16,758 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:51:16,765 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:51:16,765 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-07 00:51:16,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:51:16 BoogieIcfgContainer [2021-12-07 00:51:16,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:51:16,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:51:16,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:51:16,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:51:16,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:51:16" (1/3) ... [2021-12-07 00:51:16,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc5747d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:51:16, skipping insertion in model container [2021-12-07 00:51:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:51:16" (2/3) ... [2021-12-07 00:51:16,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc5747d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:51:16, skipping insertion in model container [2021-12-07 00:51:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:51:16" (3/3) ... [2021-12-07 00:51:16,776 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_append_unequal.i [2021-12-07 00:51:16,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:51:16,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:51:16,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:51:16,825 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:51:16,825 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:51:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-07 00:51:16,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-07 00:51:16,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:16,844 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:16,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:51:16,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:16,848 INFO L85 PathProgramCache]: Analyzing trace with hash -140887327, now seen corresponding path program 1 times [2021-12-07 00:51:16,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:16,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645944519] [2021-12-07 00:51:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:16,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:51:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:51:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 00:51:17,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:17,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645944519] [2021-12-07 00:51:17,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645944519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:51:17,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:51:17,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:51:17,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109792822] [2021-12-07 00:51:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:51:17,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:51:17,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:51:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:51:17,102 INFO L87 Difference]: Start difference. First operand has 37 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:51:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:51:17,164 INFO L93 Difference]: Finished difference Result 65 states and 88 transitions. [2021-12-07 00:51:17,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:51:17,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-12-07 00:51:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:51:17,171 INFO L225 Difference]: With dead ends: 65 [2021-12-07 00:51:17,171 INFO L226 Difference]: Without dead ends: 29 [2021-12-07 00:51:17,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:51:17,177 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:51:17,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:51:17,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-07 00:51:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-07 00:51:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-07 00:51:17,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-12-07 00:51:17,205 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 24 [2021-12-07 00:51:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:17,206 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-07 00:51:17,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:51:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-12-07 00:51:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-07 00:51:17,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:17,209 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:17,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:51:17,209 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:51:17,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:17,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1735775636, now seen corresponding path program 1 times [2021-12-07 00:51:17,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:17,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567558224] [2021-12-07 00:51:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:17,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:51:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:51:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 00:51:17,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:17,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567558224] [2021-12-07 00:51:17,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567558224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:51:17,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:51:17,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:51:17,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481012761] [2021-12-07 00:51:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:51:17,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:51:17,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:17,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:51:17,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:51:17,344 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:51:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:51:17,399 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2021-12-07 00:51:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:51:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-12-07 00:51:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:51:17,401 INFO L225 Difference]: With dead ends: 54 [2021-12-07 00:51:17,401 INFO L226 Difference]: Without dead ends: 34 [2021-12-07 00:51:17,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:51:17,403 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:51:17,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 79 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:51:17,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-07 00:51:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2021-12-07 00:51:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-07 00:51:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-12-07 00:51:17,412 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 24 [2021-12-07 00:51:17,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:17,412 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-07 00:51:17,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:51:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-12-07 00:51:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-07 00:51:17,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:17,414 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:17,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:51:17,414 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:51:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1055008088, now seen corresponding path program 1 times [2021-12-07 00:51:17,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:17,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904250811] [2021-12-07 00:51:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:17,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:51:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:51:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:51:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-07 00:51:17,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:17,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904250811] [2021-12-07 00:51:17,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904250811] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:51:17,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122474070] [2021-12-07 00:51:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:17,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:51:17,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:51:17,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:51:17,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:51:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:17,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 38 conjunts are in the unsatisfiable core [2021-12-07 00:51:17,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:51:18,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 00:51:18,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:18,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 24 [2021-12-07 00:51:18,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-12-07 00:51:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:51:18,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:51:18,438 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_circular_append_#t~ret9#1.base_9| Int) (v_ArrVal_460 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_circular_append_#t~ret9#1.base_9| v_ArrVal_460) |c_ULTIMATE.start_dll_circular_append_~head#1.base|) |c_ULTIMATE.start_dll_circular_append_~head#1.offset|))) (or (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_circular_append_#t~ret9#1.base_9|) (<= 1 .cse0) (<= (+ .cse0 1) 0)))) is different from false [2021-12-07 00:51:18,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122474070] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:51:18,440 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:51:18,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-12-07 00:51:18,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827136558] [2021-12-07 00:51:18,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:51:18,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-07 00:51:18,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-07 00:51:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=572, Unknown=1, NotChecked=48, Total=702 [2021-12-07 00:51:18,442 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-07 00:51:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:51:18,715 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-12-07 00:51:18,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:51:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 34 [2021-12-07 00:51:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:51:18,717 INFO L225 Difference]: With dead ends: 41 [2021-12-07 00:51:18,717 INFO L226 Difference]: Without dead ends: 31 [2021-12-07 00:51:18,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=920, Unknown=1, NotChecked=62, Total=1122 [2021-12-07 00:51:18,719 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 28 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:51:18,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 225 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 22 Unchecked, 0.1s Time] [2021-12-07 00:51:18,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-07 00:51:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-12-07 00:51:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-07 00:51:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-07 00:51:18,725 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 34 [2021-12-07 00:51:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:18,726 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-07 00:51:18,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-07 00:51:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-07 00:51:18,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-07 00:51:18,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:18,727 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:18,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:51:18,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:51:18,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:51:18,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1053161046, now seen corresponding path program 1 times [2021-12-07 00:51:18,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:18,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004992496] [2021-12-07 00:51:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:18,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:51:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:51:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:51:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-07 00:51:20,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:20,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004992496] [2021-12-07 00:51:20,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004992496] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:51:20,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816809214] [2021-12-07 00:51:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:20,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:51:20,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:51:20,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:51:20,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce38d7fb-efa3-4d33-8008-ba4ae8e9193e/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:51:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:21,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 256 conjunts are in the unsatisfiable core [2021-12-07 00:51:21,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:51:21,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:51:21,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 00:51:21,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:21,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-07 00:51:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:21,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-12-07 00:51:21,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:51:21,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:21,867 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-07 00:51:21,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-12-07 00:51:21,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:21,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 21 treesize of output 20 [2021-12-07 00:51:22,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 18 [2021-12-07 00:51:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 19 [2021-12-07 00:51:22,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 [2021-12-07 00:51:22,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2021-12-07 00:51:22,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 7 [2021-12-07 00:51:22,379 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:51:22,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 32 [2021-12-07 00:51:22,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 10 [2021-12-07 00:51:22,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2021-12-07 00:51:22,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:51:22,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-12-07 00:51:22,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,615 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-12-07 00:51:22,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 65 [2021-12-07 00:51:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 20 [2021-12-07 00:51:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,635 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-12-07 00:51:22,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2021-12-07 00:51:22,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:22,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:51:23,089 INFO L354 Elim1Store]: treesize reduction 495, result has 11.8 percent of original size [2021-12-07 00:51:23,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 768 treesize of output 288 [2021-12-07 00:51:23,111 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-12-07 00:51:23,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 983 treesize of output 635 [2021-12-07 00:51:23,240 INFO L354 Elim1Store]: treesize reduction 148, result has 29.9 percent of original size [2021-12-07 00:51:23,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 953 treesize of output 863 [2021-12-07 00:51:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:23,408 INFO L354 Elim1Store]: treesize reduction 186, result has 27.9 percent of original size [2021-12-07 00:51:23,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 985 treesize of output 797 [2021-12-07 00:51:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:23,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:23,919 INFO L354 Elim1Store]: treesize reduction 1728, result has 25.1 percent of original size [2021-12-07 00:51:23,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 904 treesize of output 1288 [2021-12-07 00:51:23,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 551 treesize of output 461 [2021-12-07 00:51:23,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 683 treesize of output 356 [2021-12-07 00:51:24,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,113 INFO L354 Elim1Store]: treesize reduction 60, result has 49.2 percent of original size [2021-12-07 00:51:24,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 160 [2021-12-07 00:51:24,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 625 treesize of output 585 [2021-12-07 00:51:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 236 treesize of output 172 [2021-12-07 00:51:24,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 85 [2021-12-07 00:51:24,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 166 [2021-12-07 00:51:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:24,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2021-12-07 00:51:24,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-12-07 00:51:25,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-12-07 00:51:33,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:33,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:51:33,667 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:51:33,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 85 treesize of output 101 [2021-12-07 00:51:33,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:51:33,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 128 [2021-12-07 00:51:33,964 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:51:33,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 124 [2021-12-07 00:51:34,098 INFO L354 Elim1Store]: treesize reduction 12, result has 87.6 percent of original size [2021-12-07 00:51:34,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 291 treesize of output 337