./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/dll2c_append_unequal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-tmp.no-commuhash-c3fed41 [2021-12-17 08:39:53,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 08:39:53,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 08:39:53,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 08:39:53,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 08:39:53,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 08:39:53,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 08:39:53,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 08:39:53,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 08:39:53,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 08:39:53,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 08:39:53,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 08:39:53,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 08:39:53,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 08:39:53,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 08:39:53,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 08:39:53,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 08:39:53,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 08:39:53,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 08:39:53,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 08:39:53,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 08:39:53,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 08:39:53,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 08:39:53,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 08:39:53,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 08:39:53,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 08:39:53,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 08:39:53,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 08:39:53,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 08:39:53,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 08:39:53,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 08:39:53,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 08:39:53,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 08:39:53,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 08:39:53,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 08:39:53,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 08:39:53,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 08:39:53,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 08:39:53,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 08:39:53,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 08:39:53,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 08:39:53,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 08:39:53,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 08:39:53,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 08:39:53,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 08:39:53,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 08:39:53,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 08:39:53,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 08:39:53,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 08:39:53,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 08:39:53,322 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 08:39:53,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 08:39:53,323 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 08:39:53,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 08:39:53,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 08:39:53,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 08:39:53,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 08:39:53,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 08:39:53,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 08:39:53,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 08:39:53,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:39:53,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 08:39:53,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 08:39:53,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 08:39:53,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 08:39:53,327 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 [2021-12-17 08:39:53,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 08:39:53,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 08:39:53,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 08:39:53,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 08:39:53,555 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 08:39:53,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-12-17 08:39:53,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a0b64c3/61d2a09bfaa64ce985e8ce4b79c866d8/FLAG00933747a [2021-12-17 08:39:53,976 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 08:39:53,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-12-17 08:39:53,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a0b64c3/61d2a09bfaa64ce985e8ce4b79c866d8/FLAG00933747a [2021-12-17 08:39:53,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a0b64c3/61d2a09bfaa64ce985e8ce4b79c866d8 [2021-12-17 08:39:54,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 08:39:54,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 08:39:54,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 08:39:54,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 08:39:54,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 08:39:54,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:39:53" (1/1) ... [2021-12-17 08:39:54,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e422c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54, skipping insertion in model container [2021-12-17 08:39:54,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:39:53" (1/1) ... [2021-12-17 08:39:54,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 08:39:54,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 08:39:54,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-12-17 08:39:54,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:39:54,247 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 08:39:54,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-12-17 08:39:54,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:39:54,306 INFO L208 MainTranslator]: Completed translation [2021-12-17 08:39:54,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54 WrapperNode [2021-12-17 08:39:54,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 08:39:54,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 08:39:54,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 08:39:54,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 08:39:54,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,359 INFO L137 Inliner]: procedures = 127, calls = 49, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 146 [2021-12-17 08:39:54,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 08:39:54,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 08:39:54,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 08:39:54,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 08:39:54,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 08:39:54,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 08:39:54,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 08:39:54,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 08:39:54,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (1/1) ... [2021-12-17 08:39:54,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:39:54,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:39:54,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 08:39:54,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 08:39:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 08:39:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-17 08:39:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 08:39:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 08:39:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-17 08:39:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 08:39:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 08:39:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 08:39:54,544 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 08:39:54,547 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 08:39:54,779 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 08:39:54,785 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 08:39:54,786 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-17 08:39:54,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:39:54 BoogieIcfgContainer [2021-12-17 08:39:54,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 08:39:54,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 08:39:54,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 08:39:54,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 08:39:54,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:39:53" (1/3) ... [2021-12-17 08:39:54,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd4843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:39:54, skipping insertion in model container [2021-12-17 08:39:54,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:39:54" (2/3) ... [2021-12-17 08:39:54,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd4843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:39:54, skipping insertion in model container [2021-12-17 08:39:54,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:39:54" (3/3) ... [2021-12-17 08:39:54,798 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_append_unequal.i [2021-12-17 08:39:54,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 08:39:54,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 08:39:54,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 08:39:54,842 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 [2021-12-17 08:39:54,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 08:39:54,865 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) [2021-12-17 08:39:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 08:39:54,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:39:54,871 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] [2021-12-17 08:39:54,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:39:54,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:39:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash -140887327, now seen corresponding path program 1 times [2021-12-17 08:39:54,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:39:54,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544903573] [2021-12-17 08:39:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:54,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:39:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 08:39:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 08:39:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 08:39:55,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:39:55,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544903573] [2021-12-17 08:39:55,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544903573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 08:39:55,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 08:39:55,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 08:39:55,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864676676] [2021-12-17 08:39:55,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 08:39:55,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 08:39:55,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:39:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 08:39:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 08:39:55,164 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) [2021-12-17 08:39:55,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:39:55,219 INFO L93 Difference]: Finished difference Result 65 states and 88 transitions. [2021-12-17 08:39:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 08:39:55,221 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 [2021-12-17 08:39:55,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:39:55,226 INFO L225 Difference]: With dead ends: 65 [2021-12-17 08:39:55,226 INFO L226 Difference]: Without dead ends: 29 [2021-12-17 08:39:55,228 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 [2021-12-17 08:39:55,234 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 [2021-12-17 08:39:55,234 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] [2021-12-17 08:39:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-17 08:39:55,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-17 08:39:55,259 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) [2021-12-17 08:39:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-12-17 08:39:55,261 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 24 [2021-12-17 08:39:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:39:55,262 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-17 08:39:55,262 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) [2021-12-17 08:39:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-12-17 08:39:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 08:39:55,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:39:55,265 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] [2021-12-17 08:39:55,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 08:39:55,265 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:39:55,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:39:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1735775636, now seen corresponding path program 1 times [2021-12-17 08:39:55,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:39:55,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359939086] [2021-12-17 08:39:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:55,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:39:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 08:39:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 08:39:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 08:39:55,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:39:55,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359939086] [2021-12-17 08:39:55,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359939086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 08:39:55,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 08:39:55,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 08:39:55,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793818] [2021-12-17 08:39:55,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 08:39:55,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 08:39:55,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:39:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 08:39:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 08:39:55,393 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) [2021-12-17 08:39:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:39:55,444 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2021-12-17 08:39:55,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 08:39:55,445 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 [2021-12-17 08:39:55,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:39:55,447 INFO L225 Difference]: With dead ends: 54 [2021-12-17 08:39:55,447 INFO L226 Difference]: Without dead ends: 34 [2021-12-17 08:39:55,448 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 [2021-12-17 08:39:55,449 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 [2021-12-17 08:39:55,451 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] [2021-12-17 08:39:55,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-17 08:39:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2021-12-17 08:39:55,457 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) [2021-12-17 08:39:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-12-17 08:39:55,459 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 24 [2021-12-17 08:39:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:39:55,460 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-17 08:39:55,461 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) [2021-12-17 08:39:55,461 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-12-17 08:39:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-17 08:39:55,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:39:55,463 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] [2021-12-17 08:39:55,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 08:39:55,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:39:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:39:55,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1055008088, now seen corresponding path program 1 times [2021-12-17 08:39:55,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:39:55,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664233046] [2021-12-17 08:39:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:55,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:39:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 08:39:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-17 08:39:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-17 08:39:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 08:39:55,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:39:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664233046] [2021-12-17 08:39:55,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664233046] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:39:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022343569] [2021-12-17 08:39:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:55,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:39:55,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:39:55,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 08:39:55,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 08:39:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:55,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 38 conjunts are in the unsatisfiable core [2021-12-17 08:39:55,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:39:56,224 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 8 treesize of output 4 [2021-12-17 08:39:56,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:39:56,299 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 15 treesize of output 17 [2021-12-17 08:39:56,324 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 16 treesize of output 8 [2021-12-17 08:39:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 08:39:56,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 08:39:56,416 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_circular_append_#t~ret9#1.base_9| Int) (v_ArrVal_460 (Array Int Int))) (or (not (= 0 (select (select (store |c_#memory_$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|))) (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_circular_append_#t~ret9#1.base_9|))) is different from false [2021-12-17 08:39:56,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022343569] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:39:56,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 08:39:56,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-12-17 08:39:56,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754153394] [2021-12-17 08:39:56,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 08:39:56,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-17 08:39:56,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:39:56,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-17 08:39:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=572, Unknown=1, NotChecked=48, Total=702 [2021-12-17 08:39:56,420 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) [2021-12-17 08:39:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:39:56,649 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-12-17 08:39:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 08:39:56,650 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 [2021-12-17 08:39:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:39:56,651 INFO L225 Difference]: With dead ends: 41 [2021-12-17 08:39:56,652 INFO L226 Difference]: Without dead ends: 31 [2021-12-17 08:39:56,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=920, Unknown=1, NotChecked=62, Total=1122 [2021-12-17 08:39:56,653 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 [2021-12-17 08:39:56,653 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] [2021-12-17 08:39:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-17 08:39:56,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-12-17 08:39:56,656 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) [2021-12-17 08:39:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-17 08:39:56,657 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 34 [2021-12-17 08:39:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:39:56,657 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-17 08:39:56,657 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) [2021-12-17 08:39:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-17 08:39:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-17 08:39:56,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:39:56,658 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] [2021-12-17 08:39:56,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 08:39:56,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:39:56,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:39:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:39:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1053161046, now seen corresponding path program 1 times [2021-12-17 08:39:56,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:39:56,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983766595] [2021-12-17 08:39:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:56,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:39:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 08:39:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-17 08:39:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-17 08:39:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 08:39:58,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:39:58,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983766595] [2021-12-17 08:39:58,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983766595] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:39:58,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793229918] [2021-12-17 08:39:58,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:39:58,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:39:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:39:58,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 08:39:58,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 08:39:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:39:59,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 251 conjunts are in the unsatisfiable core [2021-12-17 08:39:59,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:39:59,626 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 [2021-12-17 08:39:59,671 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 [2021-12-17 08:39:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:39:59,781 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 [2021-12-17 08:39:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:39:59,944 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 [2021-12-17 08:40:00,008 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 11 treesize of output 7 [2021-12-17 08:40:00,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,081 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-17 08:40:00,082 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 [2021-12-17 08:40:00,206 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 19 treesize of output 18 [2021-12-17 08:40:00,289 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 16 [2021-12-17 08:40:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,502 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 [2021-12-17 08:40:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,512 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 [2021-12-17 08:40:00,517 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 [2021-12-17 08:40:00,520 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 [2021-12-17 08:40:00,700 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:00,700 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 [2021-12-17 08:40:00,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,706 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 [2021-12-17 08:40:00,712 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 [2021-12-17 08:40:00,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,985 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-12-17 08:40:00,986 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 [2021-12-17 08:40:00,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,992 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 [2021-12-17 08:40:00,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:00,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,009 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-12-17 08:40:01,009 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 [2021-12-17 08:40:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,024 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 14 treesize of output 16 [2021-12-17 08:40:01,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 08:40:01,397 INFO L354 Elim1Store]: treesize reduction 483, result has 13.9 percent of original size [2021-12-17 08:40:01,398 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 681 treesize of output 269 [2021-12-17 08:40:01,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,425 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-12-17 08:40:01,425 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 1572 treesize of output 1232 [2021-12-17 08:40:01,540 INFO L354 Elim1Store]: treesize reduction 138, result has 30.3 percent of original size [2021-12-17 08:40:01,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 1491 treesize of output 1133 [2021-12-17 08:40:01,571 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-12-17 08:40:01,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 1166 treesize of output 803 [2021-12-17 08:40:01,706 INFO L354 Elim1Store]: treesize reduction 158, result has 23.7 percent of original size [2021-12-17 08:40:01,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 1405 treesize of output 1275 [2021-12-17 08:40:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:02,860 INFO L354 Elim1Store]: treesize reduction 2560, result has 35.3 percent of original size [2021-12-17 08:40:02,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 16 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 18 new quantified variables, introduced 41 case distinctions, treesize of input 2790 treesize of output 3182 [2021-12-17 08:40:02,907 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 2033 treesize of output 1791 [2021-12-17 08:40:02,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:03,016 INFO L354 Elim1Store]: treesize reduction 150, result has 33.0 percent of original size [2021-12-17 08:40:03,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 3012 treesize of output 1926 [2021-12-17 08:40:03,088 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 1305 treesize of output 1225 [2021-12-17 08:40:03,153 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 161 treesize of output 145 [2021-12-17 08:40:03,209 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 274 treesize of output 250 [2021-12-17 08:40:03,272 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 113 treesize of output 105 [2021-12-17 08:40:03,499 INFO L354 Elim1Store]: treesize reduction 12, result has 88.6 percent of original size [2021-12-17 08:40:03,499 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 127 treesize of output 185 [2021-12-17 08:40:03,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:03,792 INFO L354 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2021-12-17 08:40:03,795 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 96 treesize of output 100 [2021-12-17 08:40:04,191 INFO L354 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2021-12-17 08:40:04,192 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 104 treesize of output 108 [2021-12-17 08:40:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:04,524 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-12-17 08:40:04,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 82 [2021-12-17 08:40:05,517 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 19 treesize of output 11 [2021-12-17 08:40:07,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:07,106 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 [2021-12-17 08:40:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:33,520 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-12-17 08:40:33,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 295 treesize of output 298 [2021-12-17 08:40:34,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:34,059 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-12-17 08:40:34,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 400 treesize of output 403 [2021-12-17 08:40:34,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:34,437 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-12-17 08:40:34,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 404 treesize of output 1 [2021-12-17 08:40:37,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 53 [2021-12-17 08:40:37,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,102 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 371 treesize of output 327 [2021-12-17 08:40:37,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,144 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 294 treesize of output 308 [2021-12-17 08:40:37,208 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,208 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 308 treesize of output 324 [2021-12-17 08:40:37,260 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,260 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 306 treesize of output 320 [2021-12-17 08:40:37,302 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,302 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 272 treesize of output 286 [2021-12-17 08:40:37,344 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,344 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 290 treesize of output 306 [2021-12-17 08:40:37,394 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:37,395 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 280 treesize of output 296 [2021-12-17 08:40:39,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 08:40:39,931 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-12-17 08:40:39,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 78 [2021-12-17 08:40:40,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:40:40,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 29 [2021-12-17 08:40:41,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 49 [2021-12-17 08:40:41,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 53 [2021-12-17 08:40:41,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 83 [2021-12-17 08:40:49,869 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 453 treesize of output 205 [2021-12-17 08:40:50,154 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 476 treesize of output 204 [2021-12-17 08:40:50,305 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 488 treesize of output 208 [2021-12-17 08:40:50,527 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 465 treesize of output 209 [2021-12-17 08:40:52,513 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 539 treesize of output 235 [2021-12-17 08:40:53,218 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 465 treesize of output 217 [2021-12-17 08:40:53,825 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 540 treesize of output 244 [2021-12-17 08:40:55,679 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 488 treesize of output 224 [2021-12-17 08:40:58,803 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 239 [2021-12-17 08:41:00,194 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 477 treesize of output 221 [2021-12-17 08:41:01,692 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 552 treesize of output 248 [2021-12-17 08:41:02,744 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 500 treesize of output 228 [2021-12-17 08:41:12,785 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 535 treesize of output 231 [2021-12-17 08:41:14,494 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 536 treesize of output 240 [2021-12-17 08:41:16,107 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 484 treesize of output 220 [2021-12-17 08:41:17,040 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 461 treesize of output 213 [2021-12-17 08:41:20,969 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 472 treesize of output 200 [2021-12-17 08:41:21,529 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 449 treesize of output 201 [2021-12-17 08:42:02,259 WARN L227 SmtUtils]: Spent 25.86s on a formula simplification. DAG size of input: 1083 DAG size of output: 992 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-17 08:42:02,263 INFO L354 Elim1Store]: treesize reduction 521, result has 91.8 percent of original size [2021-12-17 08:42:02,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 23 select indices, 23 select index equivalence classes, 1 disjoint index pairs (out of 253 index pairs), introduced 26 new quantified variables, introduced 252 case distinctions, treesize of input 10651 treesize of output 15631 Killed by 15