./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2c_insert_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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_insert_equal.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 535caea86e22f289c2fcb0364594f5e7b1dfaabfa814e56099346e6a240c0067 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 01:03:59,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 01:03:59,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 01:03:59,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 01:03:59,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 01:03:59,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 01:03:59,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 01:03:59,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 01:03:59,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 01:03:59,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 01:03:59,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 01:03:59,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 01:03:59,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 01:03:59,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 01:03:59,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 01:03:59,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 01:03:59,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 01:03:59,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 01:03:59,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 01:03:59,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 01:03:59,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 01:03:59,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 01:03:59,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 01:03:59,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 01:03:59,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 01:03:59,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 01:03:59,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 01:03:59,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 01:03:59,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 01:03:59,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 01:03:59,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 01:03:59,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 01:03:59,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 01:03:59,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 01:03:59,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 01:03:59,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 01:03:59,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 01:03:59,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 01:03:59,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 01:03:59,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 01:03:59,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 01:03:59,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 01:03:59,246 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 01:03:59,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 01:03:59,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 01:03:59,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 01:03:59,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 01:03:59,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 01:03:59,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 01:03:59,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 01:03:59,248 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 01:03:59,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 01:03:59,249 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 01:03:59,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 01:03:59,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 01:03:59,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 01:03:59,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 01:03:59,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 01:03:59,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 01:03:59,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 01:03:59,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:03:59,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 01:03:59,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 01:03:59,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 01:03:59,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 01:03:59,253 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 01:03:59,253 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 535caea86e22f289c2fcb0364594f5e7b1dfaabfa814e56099346e6a240c0067 [2023-02-16 01:03:59,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 01:03:59,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 01:03:59,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 01:03:59,493 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 01:03:59,493 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 01:03:59,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_insert_equal.i [2023-02-16 01:04:00,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 01:04:00,714 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 01:04:00,714 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_equal.i [2023-02-16 01:04:00,723 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a28ba29b/b799f1d0d9264adf99adc3b6ffb083a3/FLAGaf37b1b5d [2023-02-16 01:04:00,733 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a28ba29b/b799f1d0d9264adf99adc3b6ffb083a3 [2023-02-16 01:04:00,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 01:04:00,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 01:04:00,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 01:04:00,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 01:04:00,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 01:04:00,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:04:00" (1/1) ... [2023-02-16 01:04:00,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b554106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:00, skipping insertion in model container [2023-02-16 01:04:00,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:04:00" (1/1) ... [2023-02-16 01:04:00,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 01:04:00,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 01:04:01,012 WARN L237 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_insert_equal.i[24877,24890] [2023-02-16 01:04:01,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:04:01,021 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 01:04:01,055 WARN L237 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_insert_equal.i[24877,24890] [2023-02-16 01:04:01,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:04:01,073 INFO L208 MainTranslator]: Completed translation [2023-02-16 01:04:01,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01 WrapperNode [2023-02-16 01:04:01,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 01:04:01,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 01:04:01,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 01:04:01,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 01:04:01,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,124 INFO L138 Inliner]: procedures = 127, calls = 53, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 154 [2023-02-16 01:04:01,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 01:04:01,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 01:04:01,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 01:04:01,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 01:04:01,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 01:04:01,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 01:04:01,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 01:04:01,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 01:04:01,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (1/1) ... [2023-02-16 01:04:01,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:04:01,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:04:01,182 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) [2023-02-16 01:04:01,184 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 [2023-02-16 01:04:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-16 01:04:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-16 01:04:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-02-16 01:04:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-02-16 01:04:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 01:04:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 01:04:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-16 01:04:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-16 01:04:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-16 01:04:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 01:04:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-16 01:04:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 01:04:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 01:04:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 01:04:01,334 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 01:04:01,335 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 01:04:01,527 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 01:04:01,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 01:04:01,532 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-16 01:04:01,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:04:01 BoogieIcfgContainer [2023-02-16 01:04:01,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 01:04:01,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 01:04:01,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 01:04:01,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 01:04:01,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 01:04:00" (1/3) ... [2023-02-16 01:04:01,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160c7e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:04:01, skipping insertion in model container [2023-02-16 01:04:01,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:04:01" (2/3) ... [2023-02-16 01:04:01,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160c7e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:04:01, skipping insertion in model container [2023-02-16 01:04:01,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:04:01" (3/3) ... [2023-02-16 01:04:01,540 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2023-02-16 01:04:01,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 01:04:01,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 01:04:01,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 01:04:01,587 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c5e977, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 01:04:01,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 01:04:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 32 states have (on average 1.5) internal successors, (48), 33 states have internal predecessors, (48), 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) [2023-02-16 01:04:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 01:04:01,596 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:01,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:04:01,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:01,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1237252285, now seen corresponding path program 1 times [2023-02-16 01:04:01,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:01,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613269848] [2023-02-16 01:04:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:01,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-16 01:04:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 01:04:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613269848] [2023-02-16 01:04:01,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613269848] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:04:01,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:04:01,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 01:04:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245519962] [2023-02-16 01:04:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:04:01,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 01:04:01,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:01,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 01:04:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 01:04:01,925 INFO L87 Difference]: Start difference. First operand has 38 states, 32 states have (on average 1.5) internal successors, (48), 33 states have internal predecessors, (48), 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 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2023-02-16 01:04:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:01,997 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2023-02-16 01:04:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 01:04:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 25 [2023-02-16 01:04:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:02,005 INFO L225 Difference]: With dead ends: 67 [2023-02-16 01:04:02,005 INFO L226 Difference]: Without dead ends: 30 [2023-02-16 01:04:02,008 INFO L412 NwaCegarLoop]: 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 [2023-02-16 01:04:02,012 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:02,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:04:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-16 01:04:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-16 01:04:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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) [2023-02-16 01:04:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-02-16 01:04:02,050 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 25 [2023-02-16 01:04:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:02,051 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-02-16 01:04:02,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2023-02-16 01:04:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-02-16 01:04:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 01:04:02,053 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:02,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:04:02,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 01:04:02,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:02,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:02,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1104710801, now seen corresponding path program 1 times [2023-02-16 01:04:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084256927] [2023-02-16 01:04:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:02,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-16 01:04:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 01:04:02,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:02,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084256927] [2023-02-16 01:04:02,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084256927] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:04:02,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:04:02,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 01:04:02,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239977128] [2023-02-16 01:04:02,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:04:02,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 01:04:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:02,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 01:04:02,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 01:04:02,253 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-02-16 01:04:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:02,300 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2023-02-16 01:04:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 01:04:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 25 [2023-02-16 01:04:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:02,301 INFO L225 Difference]: With dead ends: 56 [2023-02-16 01:04:02,301 INFO L226 Difference]: Without dead ends: 35 [2023-02-16 01:04:02,302 INFO L412 NwaCegarLoop]: 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 [2023-02-16 01:04:02,302 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:02,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 82 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:04:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-16 01:04:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2023-02-16 01:04:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 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) [2023-02-16 01:04:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2023-02-16 01:04:02,307 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 25 [2023-02-16 01:04:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:02,308 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-02-16 01:04:02,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-02-16 01:04:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-02-16 01:04:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-16 01:04:02,309 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:02,309 INFO L195 NwaCegarLoop]: 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, 1] [2023-02-16 01:04:02,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 01:04:02,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:02,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:02,310 INFO L85 PathProgramCache]: Analyzing trace with hash -313226979, now seen corresponding path program 1 times [2023-02-16 01:04:02,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:02,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96549272] [2023-02-16 01:04:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:02,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:02,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96549272] [2023-02-16 01:04:02,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96549272] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:04:02,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:04:02,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 01:04:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923697261] [2023-02-16 01:04:02,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:04:02,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 01:04:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:02,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 01:04:02,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 01:04:02,422 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 01:04:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:02,477 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2023-02-16 01:04:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 01:04:02,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-02-16 01:04:02,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:02,479 INFO L225 Difference]: With dead ends: 49 [2023-02-16 01:04:02,479 INFO L226 Difference]: Without dead ends: 41 [2023-02-16 01:04:02,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 01:04:02,484 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 13 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:02,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 95 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:04:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-16 01:04:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2023-02-16 01:04:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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) [2023-02-16 01:04:02,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2023-02-16 01:04:02,496 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 35 [2023-02-16 01:04:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:02,496 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-02-16 01:04:02,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 01:04:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-02-16 01:04:02,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-16 01:04:02,498 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:02,499 INFO L195 NwaCegarLoop]: 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, 1, 1] [2023-02-16 01:04:02,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 01:04:02,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:02,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:02,501 INFO L85 PathProgramCache]: Analyzing trace with hash 415590512, now seen corresponding path program 1 times [2023-02-16 01:04:02,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:02,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779458057] [2023-02-16 01:04:02,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 01:04:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779458057] [2023-02-16 01:04:05,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779458057] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500648565] [2023-02-16 01:04:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:05,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:04:05,578 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) [2023-02-16 01:04:05,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 01:04:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 161 conjunts are in the unsatisfiable core [2023-02-16 01:04:06,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:04:06,053 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:06,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-16 01:04:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:06,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-16 01:04:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:06,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 01:04:06,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 01:04:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:06,618 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-02-16 01:04:06,619 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:06,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 01:04:06,707 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:06,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-16 01:04:06,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-16 01:04:06,990 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2023-02-16 01:04:06,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 54 [2023-02-16 01:04:07,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-16 01:04:07,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2023-02-16 01:04:07,273 INFO L321 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2023-02-16 01:04:07,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 38 [2023-02-16 01:04:07,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-02-16 01:04:07,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:07,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,577 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 01:04:07,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 76 [2023-02-16 01:04:07,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,596 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-02-16 01:04:07,597 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:07,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-02-16 01:04:07,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:07,617 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:08,004 INFO L321 Elim1Store]: treesize reduction 104, result has 14.8 percent of original size [2023-02-16 01:04:08,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 190 treesize of output 111 [2023-02-16 01:04:08,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:08,046 INFO L321 Elim1Store]: treesize reduction 74, result has 17.8 percent of original size [2023-02-16 01:04:08,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 152 [2023-02-16 01:04:08,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 51 [2023-02-16 01:04:08,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:08,090 INFO L321 Elim1Store]: treesize reduction 78, result has 20.4 percent of original size [2023-02-16 01:04:08,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 130 [2023-02-16 01:04:08,099 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 37 [2023-02-16 01:04:08,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-02-16 01:04:08,194 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 01:04:08,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 27 [2023-02-16 01:04:08,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-16 01:04:08,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-16 01:04:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 01:04:08,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:04:08,414 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_733 (Array Int Int)) (v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_735 (Array Int Int)) (v_ArrVal_726 (Array Int Int)) (v_ArrVal_737 Int) (v_ArrVal_731 (Array Int Int)) (v_ArrVal_720 (Array Int Int))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.base|) |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.offset| v_ArrVal_737)) |c_ULTIMATE.start_dll_circular_insert_~new_node~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_dll_circular_insert_~last~1#1.base| v_ArrVal_720) (select (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.base|) |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.offset| |c_ULTIMATE.start_dll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_dll_circular_insert_~new_node~0#1.base| v_ArrVal_735) |c_ULTIMATE.start_dll_circular_insert_~last~1#1.base| v_ArrVal_731) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_insert_~snd_to_last~0#1.base| v_ArrVal_733) |c_ULTIMATE.start_dll_circular_insert_~new_node~0#1.base| v_ArrVal_726) |c_ULTIMATE.start_dll_circular_insert_~last~1#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8)) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2023-02-16 01:04:15,839 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_737 Int) (v_ArrVal_720 (Array Int Int)) (v_ArrVal_731 (Array Int Int)) (v_ArrVal_733 (Array Int Int)) (v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_746 (Array Int Int)) (v_ArrVal_735 (Array Int Int)) (v_ArrVal_748 (Array Int Int)) (v_ArrVal_726 (Array Int Int)) (v_ArrVal_747 (Array Int Int)) (|v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| Int)) (or (not (< |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| |c_#StackHeapBarrier|)) (= (let ((.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_748))) (let ((.cse6 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_746)) (.cse1 (select (select .cse4 |c_ULTIMATE.start_dll_circular_insert_~head#1.base|) |c_ULTIMATE.start_dll_circular_insert_~head#1.offset|))) (let ((.cse5 (select .cse4 .cse1)) (.cse2 (select (select .cse6 |c_ULTIMATE.start_dll_circular_insert_~head#1.base|) |c_ULTIMATE.start_dll_circular_insert_~head#1.offset|))) (let ((.cse3 (select .cse5 .cse2))) (select (select (store (store (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_747))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_737))) |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_721) .cse3 v_ArrVal_720) (select (select (store (store (store .cse4 .cse1 (store .cse5 .cse2 |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8|)) |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_735) .cse3 v_ArrVal_731) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store .cse6 .cse1 v_ArrVal_733) |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8| v_ArrVal_726) .cse3 v_ArrVal_722) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8)))))) |c_ULTIMATE.start_main_~data~0#1|) (not (= 0 (select |c_#valid| |v_ULTIMATE.start_dll_circular_insert_#t~ret9#1.base_8|))))) is different from false [2023-02-16 01:04:15,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500648565] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:15,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 01:04:15,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 46 [2023-02-16 01:04:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892076494] [2023-02-16 01:04:15,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 01:04:15,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-16 01:04:15,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-16 01:04:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2255, Unknown=58, NotChecked=194, Total=2652 [2023-02-16 01:04:15,848 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 46 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 37 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 01:04:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:23,673 INFO L93 Difference]: Finished difference Result 69 states and 92 transitions. [2023-02-16 01:04:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-16 01:04:23,674 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 37 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 36 [2023-02-16 01:04:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:23,677 INFO L225 Difference]: With dead ends: 69 [2023-02-16 01:04:23,677 INFO L226 Difference]: Without dead ends: 67 [2023-02-16 01:04:23,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=387, Invalid=4254, Unknown=59, NotChecked=270, Total=4970 [2023-02-16 01:04:23,681 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 275 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:23,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 382 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-02-16 01:04:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-16 01:04:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 48. [2023-02-16 01:04:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 states have internal predecessors, (54), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 01:04:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2023-02-16 01:04:23,698 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 36 [2023-02-16 01:04:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:23,699 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions. [2023-02-16 01:04:23,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 37 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 01:04:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-02-16 01:04:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-16 01:04:23,701 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:23,702 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2023-02-16 01:04:23,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 01:04:23,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:23,909 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:23,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:23,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1234028387, now seen corresponding path program 1 times [2023-02-16 01:04:23,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:23,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660789558] [2023-02-16 01:04:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:23,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:24,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:24,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660789558] [2023-02-16 01:04:24,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660789558] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:04:24,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:04:24,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 01:04:24,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722153875] [2023-02-16 01:04:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:04:24,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 01:04:24,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 01:04:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 01:04:24,147 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 01:04:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:24,206 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2023-02-16 01:04:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 01:04:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-02-16 01:04:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:24,208 INFO L225 Difference]: With dead ends: 58 [2023-02-16 01:04:24,208 INFO L226 Difference]: Without dead ends: 47 [2023-02-16 01:04:24,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 01:04:24,209 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:24,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:04:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-16 01:04:24,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-02-16 01:04:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.275) internal successors, (51), 40 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 01:04:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-02-16 01:04:24,223 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 37 [2023-02-16 01:04:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:24,224 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-02-16 01:04:24,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 01:04:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-02-16 01:04:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-16 01:04:24,228 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:24,229 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:04:24,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 01:04:24,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1534096253, now seen corresponding path program 2 times [2023-02-16 01:04:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:24,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269122850] [2023-02-16 01:04:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:24,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:24,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:24,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269122850] [2023-02-16 01:04:24,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269122850] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:04:24,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:04:24,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-16 01:04:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642926969] [2023-02-16 01:04:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:04:24,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 01:04:24,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 01:04:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-16 01:04:24,385 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 01:04:24,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:24,443 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2023-02-16 01:04:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 01:04:24,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-02-16 01:04:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:24,444 INFO L225 Difference]: With dead ends: 59 [2023-02-16 01:04:24,444 INFO L226 Difference]: Without dead ends: 47 [2023-02-16 01:04:24,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-16 01:04:24,445 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 49 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:24,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 73 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:04:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-16 01:04:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-02-16 01:04:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 01:04:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2023-02-16 01:04:24,458 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 37 [2023-02-16 01:04:24,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:24,459 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions. [2023-02-16 01:04:24,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 01:04:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-02-16 01:04:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-16 01:04:24,459 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:24,460 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1] [2023-02-16 01:04:24,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 01:04:24,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1547967990, now seen corresponding path program 1 times [2023-02-16 01:04:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:24,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559039510] [2023-02-16 01:04:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:24,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:24,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559039510] [2023-02-16 01:04:24,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559039510] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:24,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307629583] [2023-02-16 01:04:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:24,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:04:24,734 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) [2023-02-16 01:04:24,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 01:04:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:25,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 01:04:25,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:04:25,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-16 01:04:25,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-16 01:04:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:25,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:04:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 01:04:25,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307629583] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 01:04:25,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 01:04:25,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2023-02-16 01:04:25,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564529060] [2023-02-16 01:04:25,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 01:04:25,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 01:04:25,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:25,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 01:04:25,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-16 01:04:25,119 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 01:04:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:25,257 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2023-02-16 01:04:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 01:04:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-02-16 01:04:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:25,259 INFO L225 Difference]: With dead ends: 64 [2023-02-16 01:04:25,259 INFO L226 Difference]: Without dead ends: 55 [2023-02-16 01:04:25,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-02-16 01:04:25,259 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:25,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 154 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 01:04:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-16 01:04:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2023-02-16 01:04:25,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 01:04:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2023-02-16 01:04:25,266 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 38 [2023-02-16 01:04:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:25,266 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2023-02-16 01:04:25,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 01:04:25,266 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-02-16 01:04:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-16 01:04:25,266 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:25,266 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1] [2023-02-16 01:04:25,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 01:04:25,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-16 01:04:25,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:25,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:25,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1605226292, now seen corresponding path program 1 times [2023-02-16 01:04:25,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:25,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422449589] [2023-02-16 01:04:25,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 01:04:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:25,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422449589] [2023-02-16 01:04:25,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422449589] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:25,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558136896] [2023-02-16 01:04:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:25,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:25,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:04:25,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:04:25,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 01:04:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:26,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-16 01:04:26,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:04:26,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-02-16 01:04:26,283 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (exists ((v_ArrVal_2624 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2624))))) is different from true [2023-02-16 01:04:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:26,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-02-16 01:04:26,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-02-16 01:04:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-16 01:04:26,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:04:26,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558136896] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:26,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 01:04:26,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2023-02-16 01:04:26,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164513225] [2023-02-16 01:04:26,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 01:04:26,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-16 01:04:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:04:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-16 01:04:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=664, Unknown=8, NotChecked=52, Total=812 [2023-02-16 01:04:26,478 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 27 states, 25 states have (on average 2.0) internal successors, (50), 21 states have internal predecessors, (50), 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) [2023-02-16 01:04:26,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:04:26,999 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2023-02-16 01:04:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-16 01:04:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 2.0) internal successors, (50), 21 states have internal predecessors, (50), 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 38 [2023-02-16 01:04:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:04:27,005 INFO L225 Difference]: With dead ends: 72 [2023-02-16 01:04:27,005 INFO L226 Difference]: Without dead ends: 45 [2023-02-16 01:04:27,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=204, Invalid=1124, Unknown=8, NotChecked=70, Total=1406 [2023-02-16 01:04:27,007 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 92 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 01:04:27,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 237 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 347 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2023-02-16 01:04:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-16 01:04:27,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-02-16 01:04:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 01:04:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2023-02-16 01:04:27,015 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 38 [2023-02-16 01:04:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:04:27,015 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2023-02-16 01:04:27,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 2.0) internal successors, (50), 21 states have internal predecessors, (50), 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) [2023-02-16 01:04:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2023-02-16 01:04:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-16 01:04:27,016 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:04:27,016 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1] [2023-02-16 01:04:27,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 01:04:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:27,222 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:04:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:04:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1532897229, now seen corresponding path program 1 times [2023-02-16 01:04:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:04:27,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831756123] [2023-02-16 01:04:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:27,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:04:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:04:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 01:04:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-16 01:04:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 01:04:29,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:04:29,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831756123] [2023-02-16 01:04:29,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831756123] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:04:29,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024445872] [2023-02-16 01:04:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:04:29,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:04:29,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:04:29,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:04:29,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 01:04:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:04:29,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 138 conjunts are in the unsatisfiable core [2023-02-16 01:04:29,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:04:29,306 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:29,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-16 01:04:29,399 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 01:04:29,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-02-16 01:04:29,501 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 01:04:29,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 01:04:29,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:29,624 INFO L321 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2023-02-16 01:04:29,624 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 22 treesize of output 29 [2023-02-16 01:04:29,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 01:04:29,758 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 01:04:29,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2023-02-16 01:04:29,931 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2023-02-16 01:04:29,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 34 [2023-02-16 01:04:30,116 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2023-02-16 01:04:30,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 30 [2023-02-16 01:04:30,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,124 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 01:04:30,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2023-02-16 01:04:30,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:30,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,309 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 01:04:30,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 92 treesize of output 74 [2023-02-16 01:04:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,331 INFO L321 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2023-02-16 01:04:30,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2023-02-16 01:04:30,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,342 INFO L350 Elim1Store]: Elim1 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 [2023-02-16 01:04:30,720 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2023-02-16 01:04:30,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 71 [2023-02-16 01:04:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:30,943 INFO L321 Elim1Store]: treesize reduction 288, result has 24.4 percent of original size [2023-02-16 01:04:30,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 172 treesize of output 351 [2023-02-16 01:04:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:31,145 INFO L321 Elim1Store]: treesize reduction 92, result has 42.9 percent of original size [2023-02-16 01:04:31,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 519 treesize of output 461 [2023-02-16 01:04:31,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 77 [2023-02-16 01:04:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:31,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:31,661 INFO L321 Elim1Store]: treesize reduction 655, result has 21.7 percent of original size [2023-02-16 01:04:31,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 34 case distinctions, treesize of input 183 treesize of output 504 [2023-02-16 01:04:31,731 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2023-02-16 01:04:31,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 48 [2023-02-16 01:04:31,757 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 11 [2023-02-16 01:04:31,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-02-16 01:04:32,264 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 11 [2023-02-16 01:04:32,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:32,425 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:32,567 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:32,571 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:32,571 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:32,572 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:32,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 413 [2023-02-16 01:04:32,657 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:32,707 INFO L321 Elim1Store]: treesize reduction 97, result has 15.7 percent of original size [2023-02-16 01:04:32,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 247 treesize of output 431 [2023-02-16 01:04:33,096 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:33,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-16 01:04:33,154 INFO L321 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-02-16 01:04:33,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2023-02-16 01:04:33,178 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 01:04:33,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2023-02-16 01:04:33,254 INFO L321 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-02-16 01:04:33,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2023-02-16 01:04:33,257 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:33,349 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2023-02-16 01:04:33,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 36 [2023-02-16 01:04:33,488 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2023-02-16 01:04:33,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 36 [2023-02-16 01:04:33,540 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2023-02-16 01:04:33,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2023-02-16 01:04:33,561 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:33,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 776 treesize of output 770 [2023-02-16 01:04:34,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:35,346 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:35,590 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:35,772 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:35,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2023-02-16 01:04:36,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 178 [2023-02-16 01:04:36,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2023-02-16 01:04:36,917 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:37,230 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:43,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 118 treesize of output 44 [2023-02-16 01:04:43,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:43,942 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 01:04:43,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2023-02-16 01:04:44,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:44,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:44,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 170 [2023-02-16 01:04:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:44,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:04:44,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 141 [2023-02-16 01:04:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:44,816 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:04:44,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 140 [2023-02-16 01:04:45,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:45,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:45,890 INFO L321 Elim1Store]: treesize reduction 80, result has 25.2 percent of original size [2023-02-16 01:04:45,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 293 treesize of output 216 [2023-02-16 01:04:45,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:46,058 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 01:04:46,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 110 [2023-02-16 01:04:46,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 01:04:46,165 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 01:04:46,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2023-02-16 01:04:46,167 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:47,386 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:47,459 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:04:47,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 824 treesize of output 658 [2023-02-16 01:04:47,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:47,604 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:04:47,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 729 treesize of output 621 [2023-02-16 01:04:47,785 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:47,791 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:47,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:48,248 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:48,432 INFO L321 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2023-02-16 01:04:48,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 820 treesize of output 663 [2023-02-16 01:04:48,663 INFO L321 Elim1Store]: treesize reduction 85, result has 29.2 percent of original size [2023-02-16 01:04:48,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 725 treesize of output 638 [2023-02-16 01:04:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:49,194 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:49,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:49,246 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:49,327 INFO L321 Elim1Store]: treesize reduction 123, result has 34.9 percent of original size [2023-02-16 01:04:49,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 103 [2023-02-16 01:04:50,206 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:50,214 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:50,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:50,529 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,533 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,567 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,583 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,597 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,615 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:50,632 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:51,176 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2023-02-16 01:04:51,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 878 treesize of output 689 [2023-02-16 01:04:51,234 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:51,677 INFO L321 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2023-02-16 01:04:51,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 879 treesize of output 710 [2023-02-16 01:04:52,054 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:04:52,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 907 treesize of output 723 [2023-02-16 01:04:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:52,627 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:04:52,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 812 treesize of output 686 [2023-02-16 01:04:52,954 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:52,962 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:52,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:53,736 INFO L321 Elim1Store]: treesize reduction 85, result has 29.2 percent of original size [2023-02-16 01:04:53,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 784 treesize of output 685 [2023-02-16 01:04:54,560 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:54,578 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:54,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:04:55,594 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2023-02-16 01:04:55,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 783 treesize of output 652 [2023-02-16 01:04:55,770 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:04:55,775 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:04:55,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:04:56,319 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,323 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,328 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,329 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,342 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,353 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,355 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:56,633 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:04:56,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 815 treesize of output 658 [2023-02-16 01:04:57,233 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:04:57,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 829 treesize of output 670 [2023-02-16 01:04:57,842 INFO L321 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2023-02-16 01:04:57,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 137 [2023-02-16 01:04:57,966 INFO L321 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2023-02-16 01:04:57,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 149 [2023-02-16 01:04:58,305 WARN L193 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,313 WARN L193 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,397 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,400 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,613 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:04:58,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 385 treesize of output 376 [2023-02-16 01:04:58,806 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:04:58,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 371 treesize of output 364 [2023-02-16 01:04:58,957 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,959 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:58,991 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,006 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,008 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,021 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,024 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,025 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 313 [2023-02-16 01:04:59,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-02-16 01:04:59,342 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:04:59,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 366 [2023-02-16 01:04:59,445 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2023-02-16 01:04:59,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 21 [2023-02-16 01:04:59,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 83 [2023-02-16 01:04:59,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 110 [2023-02-16 01:04:59,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 218 [2023-02-16 01:04:59,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2023-02-16 01:05:00,117 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,120 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,125 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,126 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,137 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,138 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,152 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,153 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,154 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,647 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:00,724 INFO L321 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2023-02-16 01:05:00,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 693 treesize of output 605 [2023-02-16 01:05:01,180 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2023-02-16 01:05:01,180 INFO L350 Elim1Store]: Elim1 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 6 case distinctions, treesize of input 122 treesize of output 94 [2023-02-16 01:05:01,353 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:05:01,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 788 treesize of output 630 [2023-02-16 01:05:02,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 313 [2023-02-16 01:05:02,987 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:02,993 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:02,995 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:03,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 366 [2023-02-16 01:05:03,096 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2023-02-16 01:05:03,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 21 [2023-02-16 01:05:03,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 83 [2023-02-16 01:05:03,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 110 [2023-02-16 01:05:03,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 218 [2023-02-16 01:05:03,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2023-02-16 01:05:03,771 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:03,859 INFO L321 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2023-02-16 01:05:03,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 693 treesize of output 605 [2023-02-16 01:05:04,838 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:04,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:04,902 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:04,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:05,055 INFO L321 Elim1Store]: treesize reduction 123, result has 34.9 percent of original size [2023-02-16 01:05:05,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 115 [2023-02-16 01:05:05,882 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:05:05,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 788 treesize of output 630 [2023-02-16 01:05:08,685 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:08,764 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:08,805 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,020 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,023 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,029 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,031 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,035 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,036 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,046 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,047 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,048 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,208 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,211 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,218 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,244 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,251 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,261 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,262 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,263 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,297 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,305 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,317 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,318 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,321 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,322 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,362 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,364 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,394 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,397 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:09,942 INFO L321 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2023-02-16 01:05:09,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 691 treesize of output 603 [2023-02-16 01:05:10,860 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:10,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:11,204 INFO L321 Elim1Store]: treesize reduction 123, result has 34.9 percent of original size [2023-02-16 01:05:11,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 109 [2023-02-16 01:05:12,300 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:12,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:12,433 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2023-02-16 01:05:12,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 786 treesize of output 628 [2023-02-16 01:05:12,588 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,578 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,582 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,587 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,588 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,597 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,598 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,612 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,613 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:13,614 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:14,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 313 [2023-02-16 01:05:14,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-02-16 01:05:14,777 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:14,796 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:14,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 366 [2023-02-16 01:05:15,070 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2023-02-16 01:05:15,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 21 [2023-02-16 01:05:15,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 83 [2023-02-16 01:05:15,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 110 [2023-02-16 01:05:15,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 218 [2023-02-16 01:05:15,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2023-02-16 01:05:15,906 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:15,931 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:15,947 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:15,948 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:15,951 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:15,952 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 01:05:16,043 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:05:16,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 730 treesize of output 629 [2023-02-16 01:05:16,367 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:16,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:16,773 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:05:16,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 718 treesize of output 619 [2023-02-16 01:05:17,301 INFO L321 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-02-16 01:05:17,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 21 [2023-02-16 01:05:17,757 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:05:17,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 825 treesize of output 666 [2023-02-16 01:05:18,419 INFO L321 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2023-02-16 01:05:18,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 813 treesize of output 656