./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 a31fd051 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-?-a31fd05 [2023-02-15 10:43:41,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:43:41,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:43:41,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:43:41,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:43:41,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:43:41,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:43:41,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:43:41,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:43:41,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:43:41,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:43:41,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:43:41,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:43:41,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:43:41,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:43:41,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:43:41,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:43:41,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:43:41,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:43:41,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:43:41,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:43:41,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:43:41,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:43:41,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:43:41,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:43:41,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:43:41,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:43:41,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:43:41,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:43:41,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:43:41,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:43:41,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:43:41,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:43:41,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:43:41,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:43:41,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:43:41,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:43:41,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:43:41,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:43:41,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:43:41,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:43:41,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:43:41,725 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:43:41,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:43:41,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:43:41,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:43:41,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:43:41,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:43:41,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:43:41,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:43:41,727 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:43:41,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:43:41,728 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:43:41,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:43:41,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:43:41,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:43:41,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:43:41,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:43:41,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:43:41,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:43:41,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:43:41,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:43:41,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:43:41,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:43:41,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:43:41,731 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:43:41,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 535caea86e22f289c2fcb0364594f5e7b1dfaabfa814e56099346e6a240c0067 [2023-02-15 10:43:41,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:43:41,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:43:41,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:43:41,957 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:43:41,957 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:43:41,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_insert_equal.i [2023-02-15 10:43:42,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:43:43,043 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:43:43,043 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_equal.i [2023-02-15 10:43:43,051 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff189f413/c1ef26ab0b364f27954e2e5a530bf879/FLAGd52469007 [2023-02-15 10:43:43,060 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff189f413/c1ef26ab0b364f27954e2e5a530bf879 [2023-02-15 10:43:43,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:43:43,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:43:43,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:43:43,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:43:43,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:43:43,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496cbe55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43, skipping insertion in model container [2023-02-15 10:43:43,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:43:43,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:43:43,304 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] [2023-02-15 10:43:43,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:43:43,317 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:43:43,367 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] [2023-02-15 10:43:43,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:43:43,387 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:43:43,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43 WrapperNode [2023-02-15 10:43:43,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:43:43,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:43:43,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:43:43,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:43:43,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,419 INFO L138 Inliner]: procedures = 127, calls = 53, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 154 [2023-02-15 10:43:43,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:43:43,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:43:43,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:43:43,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:43:43,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:43:43,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:43:43,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:43:43,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:43:43,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (1/1) ... [2023-02-15 10:43:43,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:43:43,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:43:43,487 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) [2023-02-15 10:43:43,497 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 [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-02-15 10:43:43,518 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 10:43:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 10:43:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 10:43:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 10:43:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-15 10:43:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:43:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:43:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:43:43,643 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:43:43,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:43:43,851 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:43:43,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:43:43,855 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-15 10:43:43,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:43:43 BoogieIcfgContainer [2023-02-15 10:43:43,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:43:43,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:43:43,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:43:43,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:43:43,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:43:43" (1/3) ... [2023-02-15 10:43:43,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc4e4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:43:43, skipping insertion in model container [2023-02-15 10:43:43,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:43:43" (2/3) ... [2023-02-15 10:43:43,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc4e4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:43:43, skipping insertion in model container [2023-02-15 10:43:43,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:43:43" (3/3) ... [2023-02-15 10:43:43,862 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2023-02-15 10:43:43,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:43:43,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:43:43,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:43:43,904 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;@1555a102, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:43:43,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:43:43,907 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) [2023-02-15 10:43:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 10:43:43,912 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:43:43,912 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] [2023-02-15 10:43:43,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:43:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:43:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1237252285, now seen corresponding path program 1 times [2023-02-15 10:43:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:43:43,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312534521] [2023-02-15 10:43:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:43:43,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:43:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:43:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-15 10:43:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 10:43:44,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:43:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312534521] [2023-02-15 10:43:44,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312534521] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:43:44,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:43:44,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 10:43:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770057373] [2023-02-15 10:43:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:43:44,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 10:43:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:43:44,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 10:43:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 10:43:44,231 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) [2023-02-15 10:43:44,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:43:44,293 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2023-02-15 10:43:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 10:43:44,296 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 [2023-02-15 10:43:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:43:44,300 INFO L225 Difference]: With dead ends: 67 [2023-02-15 10:43:44,301 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 10:43:44,303 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 [2023-02-15 10:43:44,307 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 [2023-02-15 10:43:44,307 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] [2023-02-15 10:43:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 10:43:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-15 10:43:44,329 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) [2023-02-15 10:43:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-02-15 10:43:44,332 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 25 [2023-02-15 10:43:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:43:44,333 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-02-15 10:43:44,333 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) [2023-02-15 10:43:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-02-15 10:43:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 10:43:44,335 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:43:44,335 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] [2023-02-15 10:43:44,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:43:44,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:43:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:43:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1104710801, now seen corresponding path program 1 times [2023-02-15 10:43:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:43:44,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159892739] [2023-02-15 10:43:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:43:44,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:43:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:43:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-15 10:43:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 10:43:44,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:43:44,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159892739] [2023-02-15 10:43:44,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159892739] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:43:44,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:43:44,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:43:44,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907377962] [2023-02-15 10:43:44,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:43:44,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:43:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:43:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:43:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:43:44,571 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) [2023-02-15 10:43:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:43:44,637 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2023-02-15 10:43:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 10:43:44,638 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 [2023-02-15 10:43:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:43:44,640 INFO L225 Difference]: With dead ends: 56 [2023-02-15 10:43:44,641 INFO L226 Difference]: Without dead ends: 35 [2023-02-15 10:43:44,642 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 [2023-02-15 10:43:44,643 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 10:43:44,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 82 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 10:43:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-15 10:43:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2023-02-15 10:43:44,648 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) [2023-02-15 10:43:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2023-02-15 10:43:44,648 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 25 [2023-02-15 10:43:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:43:44,649 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-02-15 10:43:44,649 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) [2023-02-15 10:43:44,649 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-02-15 10:43:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 10:43:44,650 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:43:44,650 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] [2023-02-15 10:43:44,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 10:43:44,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:43:44,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:43:44,651 INFO L85 PathProgramCache]: Analyzing trace with hash -313226979, now seen corresponding path program 1 times [2023-02-15 10:43:44,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:43:44,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599949533] [2023-02-15 10:43:44,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:43:44,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:43:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:43:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:43:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:43:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:43:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:43:44,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599949533] [2023-02-15 10:43:44,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599949533] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:43:44,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:43:44,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:43:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774294394] [2023-02-15 10:43:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:43:44,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:43:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:43:44,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:43:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:43:44,817 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) [2023-02-15 10:43:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:43:44,867 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2023-02-15 10:43:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 10:43:44,868 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 [2023-02-15 10:43:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:43:44,869 INFO L225 Difference]: With dead ends: 49 [2023-02-15 10:43:44,869 INFO L226 Difference]: Without dead ends: 41 [2023-02-15 10:43:44,870 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 [2023-02-15 10:43:44,871 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 [2023-02-15 10:43:44,873 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] [2023-02-15 10:43:44,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-15 10:43:44,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2023-02-15 10:43:44,878 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) [2023-02-15 10:43:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2023-02-15 10:43:44,879 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 35 [2023-02-15 10:43:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:43:44,880 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-02-15 10:43:44,880 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) [2023-02-15 10:43:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-02-15 10:43:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-15 10:43:44,881 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:43:44,881 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] [2023-02-15 10:43:44,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 10:43:44,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:43:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:43:44,883 INFO L85 PathProgramCache]: Analyzing trace with hash 415590512, now seen corresponding path program 1 times [2023-02-15 10:43:44,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:43:44,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356132638] [2023-02-15 10:43:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:43:44,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:43:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:43:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:43:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:43:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 10:43:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:43:47,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356132638] [2023-02-15 10:43:47,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356132638] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:43:47,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516972035] [2023-02-15 10:43:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:43:47,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:43:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:43:47,309 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) [2023-02-15 10:43:47,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 10:43:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:43:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 153 conjunts are in the unsatisfiable core [2023-02-15 10:43:47,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:43:47,712 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 [2023-02-15 10:43:47,752 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 [2023-02-15 10:43:47,861 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 10:43:47,861 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 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 10:43:47,988 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 [2023-02-15 10:43:48,055 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 13 treesize of output 9 [2023-02-15 10:43:48,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:48,137 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 10:43:48,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2023-02-15 10:43:48,215 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 [2023-02-15 10:43:48,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:48,224 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 21 treesize of output 20 [2023-02-15 10:43:48,366 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:43:48,367 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 53 treesize of output 48 [2023-02-15 10:43:48,371 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 20 treesize of output 22 [2023-02-15 10:43:48,567 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2023-02-15 10:43:48,568 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 94 treesize of output 55 [2023-02-15 10:43:48,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:48,581 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 [2023-02-15 10:43:48,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2023-02-15 10:43:48,819 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-02-15 10:43:48,819 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 88 treesize of output 38 [2023-02-15 10:43:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:48,833 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 [2023-02-15 10:43:48,841 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 [2023-02-15 10:43:48,845 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 [2023-02-15 10:43:49,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,049 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-15 10:43:49,049 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 96 treesize of output 82 [2023-02-15 10:43:49,066 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2023-02-15 10:43:49,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2023-02-15 10:43:49,074 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 [2023-02-15 10:43:49,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,094 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-02-15 10:43:49,095 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 [2023-02-15 10:43:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,124 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 [2023-02-15 10:43:49,516 INFO L321 Elim1Store]: treesize reduction 104, result has 14.8 percent of original size [2023-02-15 10:43:49,521 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 198 treesize of output 115 [2023-02-15 10:43:49,551 INFO L321 Elim1Store]: treesize reduction 74, result has 17.8 percent of original size [2023-02-15 10:43:49,551 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 182 treesize of output 135 [2023-02-15 10:43:49,558 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 [2023-02-15 10:43:49,567 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 49 treesize of output 47 [2023-02-15 10:43:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:43:49,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 59 [2023-02-15 10:43:49,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 29 treesize of output 33 [2023-02-15 10:43:49,661 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 10:43:49,662 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 57 treesize of output 28 [2023-02-15 10:43:49,669 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 [2023-02-15 10:43:49,711 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 [2023-02-15 10:43:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 10:43:49,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:44:01,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516972035] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:44:01,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 10:44:01,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 46 [2023-02-15 10:44:01,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202829350] [2023-02-15 10:44:01,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 10:44:01,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-15 10:44:01,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:44:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-15 10:44:01,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2421, Unknown=70, NotChecked=0, Total=2652 [2023-02-15 10:44:01,217 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) [2023-02-15 10:44:07,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:44:07,661 INFO L93 Difference]: Finished difference Result 108 states and 146 transitions. [2023-02-15 10:44:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-15 10:44:07,662 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 [2023-02-15 10:44:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:44:07,664 INFO L225 Difference]: With dead ends: 108 [2023-02-15 10:44:07,664 INFO L226 Difference]: Without dead ends: 106 [2023-02-15 10:44:07,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=591, Invalid=5818, Unknown=71, NotChecked=0, Total=6480 [2023-02-15 10:44:07,666 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 452 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-02-15 10:44:07,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 351 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-02-15 10:44:07,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-02-15 10:44:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 53. [2023-02-15 10:44:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 10:44:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2023-02-15 10:44:07,689 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 36 [2023-02-15 10:44:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:44:07,690 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2023-02-15 10:44:07,690 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) [2023-02-15 10:44:07,690 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2023-02-15 10:44:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 10:44:07,692 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:44:07,693 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] [2023-02-15 10:44:07,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 10:44:07,902 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 [2023-02-15 10:44:07,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:44:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:44:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1234028387, now seen corresponding path program 1 times [2023-02-15 10:44:07,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:44:07,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770572570] [2023-02-15 10:44:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:07,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:44:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:44:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:44:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:44:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:44:08,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:44:08,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770572570] [2023-02-15 10:44:08,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770572570] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:44:08,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:44:08,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 10:44:08,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151117574] [2023-02-15 10:44:08,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:44:08,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 10:44:08,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:44:08,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 10:44:08,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 10:44:08,139 INFO L87 Difference]: Start difference. First operand 53 states and 72 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) [2023-02-15 10:44:08,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:44:08,189 INFO L93 Difference]: Finished difference Result 63 states and 84 transitions. [2023-02-15 10:44:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 10:44:08,190 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 [2023-02-15 10:44:08,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:44:08,192 INFO L225 Difference]: With dead ends: 63 [2023-02-15 10:44:08,192 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 10:44:08,193 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 [2023-02-15 10:44:08,194 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 [2023-02-15 10:44:08,194 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] [2023-02-15 10:44:08,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 10:44:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-15 10:44:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 10:44:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2023-02-15 10:44:08,213 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 37 [2023-02-15 10:44:08,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:44:08,214 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions. [2023-02-15 10:44:08,214 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) [2023-02-15 10:44:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2023-02-15 10:44:08,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 10:44:08,218 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:44:08,218 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] [2023-02-15 10:44:08,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 10:44:08,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:44:08,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:44:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1534096253, now seen corresponding path program 2 times [2023-02-15 10:44:08,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:44:08,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648784980] [2023-02-15 10:44:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:08,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:44:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:44:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:44:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:44:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,357 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:44:08,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:44:08,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648784980] [2023-02-15 10:44:08,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648784980] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:44:08,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:44:08,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 10:44:08,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236969726] [2023-02-15 10:44:08,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:44:08,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 10:44:08,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:44:08,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 10:44:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 10:44:08,359 INFO L87 Difference]: Start difference. First operand 52 states and 69 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) [2023-02-15 10:44:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:44:08,410 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2023-02-15 10:44:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 10:44:08,411 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 [2023-02-15 10:44:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:44:08,412 INFO L225 Difference]: With dead ends: 64 [2023-02-15 10:44:08,412 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 10:44:08,412 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 [2023-02-15 10:44:08,413 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 [2023-02-15 10:44:08,413 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] [2023-02-15 10:44:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 10:44:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-15 10:44:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 10:44:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2023-02-15 10:44:08,420 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 37 [2023-02-15 10:44:08,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:44:08,421 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2023-02-15 10:44:08,421 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) [2023-02-15 10:44:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-02-15 10:44:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 10:44:08,421 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:44:08,422 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] [2023-02-15 10:44:08,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 10:44:08,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:44:08,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:44:08,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1547967990, now seen corresponding path program 1 times [2023-02-15 10:44:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:44:08,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829277226] [2023-02-15 10:44:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:44:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:44:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:44:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:44:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:44:08,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:44:08,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829277226] [2023-02-15 10:44:08,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829277226] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:44:08,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996377842] [2023-02-15 10:44:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:08,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:44:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:44:08,664 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) [2023-02-15 10:44:08,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 10:44:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:08,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 10:44:08,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:44:08,966 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 [2023-02-15 10:44:08,971 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 [2023-02-15 10:44:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:44:08,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:44:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 10:44:09,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996377842] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:44:09,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:44:09,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2023-02-15 10:44:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76976235] [2023-02-15 10:44:09,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:44:09,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 10:44:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:44:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 10:44:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-15 10:44:09,024 INFO L87 Difference]: Start difference. First operand 52 states and 67 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) [2023-02-15 10:44:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:44:09,151 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2023-02-15 10:44:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 10:44:09,152 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 [2023-02-15 10:44:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:44:09,153 INFO L225 Difference]: With dead ends: 69 [2023-02-15 10:44:09,153 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 10:44:09,154 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 [2023-02-15 10:44:09,154 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 10:44:09,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 171 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 10:44:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 10:44:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2023-02-15 10:44:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 10:44:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2023-02-15 10:44:09,168 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 38 [2023-02-15 10:44:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:44:09,168 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2023-02-15 10:44:09,169 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) [2023-02-15 10:44:09,169 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-02-15 10:44:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 10:44:09,170 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:44:09,170 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] [2023-02-15 10:44:09,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 10:44:09,377 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 [2023-02-15 10:44:09,377 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:44:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:44:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1605226292, now seen corresponding path program 1 times [2023-02-15 10:44:09,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:44:09,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793752776] [2023-02-15 10:44:09,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:09,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:44:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:44:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:44:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:44:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 10:44:09,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:44:09,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793752776] [2023-02-15 10:44:09,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793752776] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:44:09,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709534257] [2023-02-15 10:44:09,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:09,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:44:09,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:44:09,689 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) [2023-02-15 10:44:09,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 10:44:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:09,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-15 10:44:09,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:44:10,071 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 8 treesize of output 4 [2023-02-15 10:44:10,102 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (exists ((v_ArrVal_2622 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2622))))) is different from true [2023-02-15 10:44:10,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:10,123 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 15 treesize of output 17 [2023-02-15 10:44:10,143 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 16 treesize of output 8 [2023-02-15 10:44:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-15 10:44:10,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:44:10,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709534257] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:44:10,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 10:44:10,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2023-02-15 10:44:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831112195] [2023-02-15 10:44:10,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 10:44:10,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-15 10:44:10,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:44:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-15 10:44:10,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=665, Unknown=7, NotChecked=52, Total=812 [2023-02-15 10:44:10,240 INFO L87 Difference]: Start difference. First operand 52 states and 66 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) [2023-02-15 10:44:10,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:44:10,657 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2023-02-15 10:44:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 10:44:10,665 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 [2023-02-15 10:44:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:44:10,665 INFO L225 Difference]: With dead ends: 89 [2023-02-15 10:44:10,665 INFO L226 Difference]: Without dead ends: 50 [2023-02-15 10:44:10,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=1125, Unknown=7, NotChecked=70, Total=1406 [2023-02-15 10:44:10,666 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 93 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 10:44:10,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 227 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 327 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2023-02-15 10:44:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-15 10:44:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-02-15 10:44:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 10:44:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-02-15 10:44:10,673 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 38 [2023-02-15 10:44:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:44:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-02-15 10:44:10,674 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) [2023-02-15 10:44:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-02-15 10:44:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 10:44:10,674 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:44:10,675 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] [2023-02-15 10:44:10,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 10:44:10,885 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 [2023-02-15 10:44:10,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:44:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:44:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1532897229, now seen corresponding path program 1 times [2023-02-15 10:44:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:44:10,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667922695] [2023-02-15 10:44:10,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:10,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:44:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:44:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 10:44:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-15 10:44:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 10:44:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:44:12,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667922695] [2023-02-15 10:44:12,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667922695] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:44:12,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373997982] [2023-02-15 10:44:12,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:44:12,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:44:12,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:44:12,532 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) [2023-02-15 10:44:12,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 10:44:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:44:12,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 120 conjunts are in the unsatisfiable core [2023-02-15 10:44:12,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:44:12,813 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 [2023-02-15 10:44:13,059 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 10:44:13,059 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 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 10:44:13,119 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 [2023-02-15 10:44:13,185 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:44:13,185 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 [2023-02-15 10:44:13,344 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2023-02-15 10:44:13,345 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 [2023-02-15 10:44:13,518 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2023-02-15 10:44:13,518 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 [2023-02-15 10:44:13,521 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 [2023-02-15 10:44:13,526 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 [2023-02-15 10:44:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:13,666 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 14 treesize of output 16 [2023-02-15 10:44:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:13,684 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-15 10:44:13,684 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 [2023-02-15 10:44:13,701 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-02-15 10:44:13,701 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 28 treesize of output 30 [2023-02-15 10:44:14,020 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2023-02-15 10:44:14,020 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 83 [2023-02-15 10:44:14,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:14,210 INFO L321 Elim1Store]: treesize reduction 92, result has 42.9 percent of original size [2023-02-15 10:44:14,210 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 253 treesize of output 247 [2023-02-15 10:44:14,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:14,310 INFO L321 Elim1Store]: treesize reduction 116, result has 27.0 percent of original size [2023-02-15 10:44:14,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 183 [2023-02-15 10:44:14,324 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 84 treesize of output 89 [2023-02-15 10:44:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:44:14,774 INFO L321 Elim1Store]: treesize reduction 675, result has 23.0 percent of original size [2023-02-15 10:44:14,774 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 203 treesize of output 524 [2023-02-15 10:44:14,799 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 [2023-02-15 10:44:15,073 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,100 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,164 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,287 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:15,320 INFO L321 Elim1Store]: treesize reduction 97, result has 15.7 percent of original size [2023-02-15 10:44:15,320 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 2 new quantified variables, introduced 7 case distinctions, treesize of input 237 treesize of output 421 [2023-02-15 10:44:15,432 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:15,437 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:15,437 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:15,438 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:15,439 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 403 [2023-02-15 10:44:15,548 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 95 treesize of output 79 [2023-02-15 10:44:15,575 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,582 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,716 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:15,818 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:16,078 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 429 treesize of output 383 [2023-02-15 10:44:16,268 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 429 treesize of output 383 [2023-02-15 10:44:16,455 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:44:16,455 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 606 treesize of output 586 [2023-02-15 10:44:16,847 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:44:16,847 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 606 treesize of output 586 [2023-02-15 10:44:17,245 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:17,865 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:18,804 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:18,814 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 1774 treesize of output 1746 [2023-02-15 10:44:19,378 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:19,379 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1783 treesize of output 1768 [2023-02-15 10:44:20,127 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 1774 treesize of output 1746 [2023-02-15 10:44:20,437 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 1774 treesize of output 1746 [2023-02-15 10:44:21,425 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:21,426 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1783 treesize of output 1768 [2023-02-15 10:44:21,869 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:22,063 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 1774 treesize of output 1746 [2023-02-15 10:44:22,614 INFO L321 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2023-02-15 10:44:22,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1849 treesize of output 1833 [2023-02-15 10:44:23,423 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:23,976 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2023-02-15 10:44:23,976 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 1874 treesize of output 1852 [2023-02-15 10:44:24,705 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:24,705 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 1883 treesize of output 1846 [2023-02-15 10:44:25,527 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:25,528 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 1886 treesize of output 1849 [2023-02-15 10:44:25,908 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:25,908 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 1 case distinctions, treesize of input 1823 treesize of output 1798 [2023-02-15 10:44:26,684 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:26,685 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 1 case distinctions, treesize of input 1827 treesize of output 1802 [2023-02-15 10:44:27,152 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2023-02-15 10:44:27,152 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 3 case distinctions, treesize of input 1823 treesize of output 1811 [2023-02-15 10:44:27,906 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:27,922 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:28,603 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-02-15 10:44:28,604 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1781 treesize of output 1766 [2023-02-15 10:44:28,839 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 1774 treesize of output 1746 [2023-02-15 10:44:29,690 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:29,973 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:30,523 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 1774 treesize of output 1746 [2023-02-15 10:44:31,231 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:31,719 INFO L321 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2023-02-15 10:44:31,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1843 treesize of output 1827 [2023-02-15 10:44:32,342 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:32,961 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:32,962 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:32,963 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:32,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 209 [2023-02-15 10:44:33,045 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,045 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 207 [2023-02-15 10:44:33,082 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,083 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,083 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 355 treesize of output 324 [2023-02-15 10:44:33,188 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,189 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,189 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 207 [2023-02-15 10:44:33,360 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,360 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,361 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 209 [2023-02-15 10:44:33,492 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,492 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,493 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 215 [2023-02-15 10:44:33,585 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,586 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,586 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:33,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 312 [2023-02-15 10:44:33,600 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 15 treesize of output 11 [2023-02-15 10:44:35,305 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,305 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,306 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 222 [2023-02-15 10:44:35,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:35,444 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,444 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,445 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 222 [2023-02-15 10:44:35,530 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:35,619 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,620 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,621 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 338 [2023-02-15 10:44:35,758 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:35,863 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:35,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 222 [2023-02-15 10:44:36,045 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 219 [2023-02-15 10:44:36,090 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,090 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,091 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 219 [2023-02-15 10:44:36,242 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,243 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,243 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 328 [2023-02-15 10:44:36,365 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,366 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,366 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 219 [2023-02-15 10:44:36,581 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,582 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,582 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:36,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 316 [2023-02-15 10:44:36,628 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 15 treesize of output 11 [2023-02-15 10:44:44,896 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:44,897 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:44,897 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:44,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 180 [2023-02-15 10:44:45,047 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,047 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,048 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 172 [2023-02-15 10:44:45,161 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:45,206 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,206 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,207 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 289 [2023-02-15 10:44:45,247 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:45,335 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 172 [2023-02-15 10:44:45,560 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:45,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 277 [2023-02-15 10:44:45,591 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 15 treesize of output 11 [2023-02-15 10:44:46,409 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,410 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,410 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 277 [2023-02-15 10:44:46,431 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 15 treesize of output 11 [2023-02-15 10:44:46,676 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 282 [2023-02-15 10:44:46,869 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,870 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,870 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:46,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 180 [2023-02-15 10:44:47,033 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,034 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,034 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 172 [2023-02-15 10:44:47,164 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:47,235 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,236 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,236 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 289 [2023-02-15 10:44:47,270 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:47,353 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,354 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,354 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 172 [2023-02-15 10:44:47,779 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,780 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,780 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 221 [2023-02-15 10:44:47,850 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 215 [2023-02-15 10:44:47,997 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,997 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:47,998 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 213 [2023-02-15 10:44:48,099 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 213 [2023-02-15 10:44:48,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,217 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 215 [2023-02-15 10:44:48,320 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,320 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,321 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 371 treesize of output 330 [2023-02-15 10:44:48,520 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,521 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,521 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:48,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 318 [2023-02-15 10:44:48,572 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 15 treesize of output 11 [2023-02-15 10:44:49,306 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,307 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,307 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 237 [2023-02-15 10:44:49,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,977 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:49,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 237 [2023-02-15 10:44:50,097 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,098 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,098 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 346 [2023-02-15 10:44:50,238 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:44:50,382 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,383 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,383 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 230 [2023-02-15 10:44:50,463 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,464 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,464 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 365 treesize of output 324 [2023-02-15 10:44:50,490 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 15 treesize of output 11 [2023-02-15 10:44:50,765 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,766 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,766 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 336 [2023-02-15 10:44:50,907 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,908 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,909 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 227 [2023-02-15 10:44:50,984 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,984 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,985 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:50,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 227 [2023-02-15 10:44:51,099 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:51,099 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:51,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:44:51,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 227 [2023-02-15 10:45:43,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:43,481 INFO L321 Elim1Store]: treesize reduction 190, result has 12.4 percent of original size [2023-02-15 10:45:43,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 1855 treesize of output 1297 [2023-02-15 10:45:43,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:43,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:43,746 INFO L321 Elim1Store]: treesize reduction 83, result has 17.0 percent of original size [2023-02-15 10:45:43,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1183 treesize of output 737 [2023-02-15 10:45:44,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:44,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:45:51,035 WARN L233 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 194 DAG size of output: 75 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-02-15 10:45:51,036 INFO L321 Elim1Store]: treesize reduction 654, result has 18.6 percent of original size [2023-02-15 10:45:51,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 13 new quantified variables, introduced 37 case distinctions, treesize of input 4105 treesize of output 3384 [2023-02-15 10:46:30,009 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,020 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,038 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,057 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,082 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,108 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,134 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,153 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,178 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,209 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,225 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,250 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,282 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,315 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,365 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:30,394 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,535 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,552 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,574 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,589 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,620 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,645 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,676 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,749 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,768 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,808 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,826 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:53,859 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,026 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,133 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,183 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,200 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,399 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,448 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,525 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,575 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,592 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,637 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:54,884 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,075 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,249 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,301 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,473 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,709 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,751 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-15 10:46:55,992 WARN L207 Elim1Store]: Array PQE input equivalent to false