/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/forester-heap/dll-optional-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:50:04,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:50:04,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:50:04,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:50:04,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:50:04,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:50:04,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:50:04,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:50:04,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:50:04,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:50:04,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:50:04,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:50:04,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:50:04,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:50:04,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:50:04,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:50:04,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:50:04,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:50:04,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:50:04,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:50:04,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:50:04,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:50:04,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:50:04,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:50:04,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:50:04,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:50:04,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:50:04,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:50:04,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:50:04,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:50:04,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:50:04,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:50:04,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:50:04,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:50:04,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:50:04,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:50:04,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:50:04,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:50:04,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:50:04,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:50:04,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:50:04,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 22:50:04,665 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:50:04,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:50:04,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:50:04,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:50:04,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:50:04,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:50:04,666 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:50:04,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:50:04,666 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:50:04,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:50:04,667 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:50:04,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:50:04,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:50:04,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:50:04,667 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:50:04,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:50:04,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:50:04,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:50:04,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:50:04,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:50:04,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:50:04,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:50:04,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:50:04,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:50:04,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:50:04,870 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:50:04,870 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:50:04,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-optional-1.i [2023-03-31 22:50:05,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:50:06,098 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:50:06,098 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-1.i [2023-03-31 22:50:06,110 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b96d57f3/08565eeacb4f431d845fa7feec041b7d/FLAGf000f79d1 [2023-03-31 22:50:06,126 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b96d57f3/08565eeacb4f431d845fa7feec041b7d [2023-03-31 22:50:06,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:50:06,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:50:06,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:50:06,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:50:06,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:50:06,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f6da01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06, skipping insertion in model container [2023-03-31 22:50:06,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:50:06,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:50:06,411 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-1.i[22753,22766] [2023-03-31 22:50:06,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:50:06,431 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:50:06,471 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-1.i[22753,22766] [2023-03-31 22:50:06,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:50:06,491 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:50:06,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06 WrapperNode [2023-03-31 22:50:06,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:50:06,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:50:06,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:50:06,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:50:06,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:50:06,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:50:06,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:50:06,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:50:06,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (1/1) ... [2023-03-31 22:50:06,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:50:06,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:50:06,574 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) [2023-03-31 22:50:06,578 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 [2023-03-31 22:50:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:50:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:50:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:50:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:50:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 22:50:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 22:50:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 22:50:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 22:50:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 22:50:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 22:50:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 22:50:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 22:50:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 22:50:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 22:50:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 22:50:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 22:50:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 22:50:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 22:50:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 22:50:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 22:50:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 22:50:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 22:50:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-03-31 22:50:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 22:50:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 22:50:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 22:50:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 22:50:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 22:50:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 22:50:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:50:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 22:50:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:50:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:50:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:50:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:50:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:50:06,874 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:50:06,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:50:07,147 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:50:07,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:50:07,283 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 22:50:07,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:50:07 BoogieIcfgContainer [2023-03-31 22:50:07,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:50:07,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:50:07,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:50:07,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:50:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:50:06" (1/3) ... [2023-03-31 22:50:07,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac4730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:50:07, skipping insertion in model container [2023-03-31 22:50:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:50:06" (2/3) ... [2023-03-31 22:50:07,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac4730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:50:07, skipping insertion in model container [2023-03-31 22:50:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:50:07" (3/3) ... [2023-03-31 22:50:07,296 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-optional-1.i [2023-03-31 22:50:07,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:50:07,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:50:07,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:50:07,362 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8b4ad1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:50:07,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:50:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 22:50:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-03-31 22:50:07,370 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:50:07,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:50:07,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:50:07,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:50:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash 307749838, now seen corresponding path program 1 times [2023-03-31 22:50:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:50:07,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341942055] [2023-03-31 22:50:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:50:07,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:50:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:50:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:50:07,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:50:07,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341942055] [2023-03-31 22:50:07,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341942055] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:50:07,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:50:07,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:50:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814927550] [2023-03-31 22:50:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:50:07,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:50:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:50:07,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:50:07,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:50:07,609 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:50:07,840 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2023-03-31 22:50:07,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:50:07,842 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-03-31 22:50:07,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:50:07,846 INFO L225 Difference]: With dead ends: 31 [2023-03-31 22:50:07,847 INFO L226 Difference]: Without dead ends: 15 [2023-03-31 22:50:07,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:50:07,857 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 22:50:07,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 22:50:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-03-31 22:50:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-03-31 22:50:07,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-03-31 22:50:07,915 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2023-03-31 22:50:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:50:07,916 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-03-31 22:50:07,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-03-31 22:50:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-03-31 22:50:07,919 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:50:07,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:50:07,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:50:07,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:50:07,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:50:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1657427801, now seen corresponding path program 1 times [2023-03-31 22:50:07,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:50:07,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116223784] [2023-03-31 22:50:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:50:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:50:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:50:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:50:09,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:50:09,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116223784] [2023-03-31 22:50:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116223784] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:50:09,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:50:09,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:50:09,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92687406] [2023-03-31 22:50:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:50:09,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:50:09,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:50:09,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:50:09,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:50:09,319 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:50:09,835 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-03-31 22:50:09,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 22:50:09,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-03-31 22:50:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:50:09,836 INFO L225 Difference]: With dead ends: 32 [2023-03-31 22:50:09,836 INFO L226 Difference]: Without dead ends: 30 [2023-03-31 22:50:09,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-03-31 22:50:09,837 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 22:50:09,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 39 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 22:50:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-03-31 22:50:09,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2023-03-31 22:50:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:09,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-03-31 22:50:09,846 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2023-03-31 22:50:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:50:09,846 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-03-31 22:50:09,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:50:09,847 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-03-31 22:50:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-03-31 22:50:09,847 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:50:09,847 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:50:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:50:09,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:50:09,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:50:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash 801364643, now seen corresponding path program 1 times [2023-03-31 22:50:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:50:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466993800] [2023-03-31 22:50:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:50:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:50:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:50:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:50:13,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:50:13,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466993800] [2023-03-31 22:50:13,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466993800] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:50:13,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524066276] [2023-03-31 22:50:13,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:50:13,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:50:13,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:50:13,505 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) [2023-03-31 22:50:13,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 22:50:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:50:13,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 134 conjunts are in the unsatisfiable core [2023-03-31 22:50:13,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:50:13,920 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 20 treesize of output 23 [2023-03-31 22:50:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:13,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:13,936 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 19 [2023-03-31 22:50:13,944 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-03-31 22:50:13,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:13,955 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 11 treesize of output 13 [2023-03-31 22:50:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:13,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-03-31 22:50:13,982 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-03-31 22:50:13,983 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 31 treesize of output 26 [2023-03-31 22:50:13,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-03-31 22:50:14,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-03-31 22:50:14,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-03-31 22:50:14,021 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 8 treesize of output 7 [2023-03-31 22:50:14,032 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 [2023-03-31 22:50:14,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 103 [2023-03-31 22:50:14,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 97 [2023-03-31 22:50:14,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 91 [2023-03-31 22:50:14,160 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 8 treesize of output 1 [2023-03-31 22:50:14,184 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 56 [2023-03-31 22:50:14,190 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2023-03-31 22:50:14,198 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 8 treesize of output 7 [2023-03-31 22:50:14,207 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 8 treesize of output 7 [2023-03-31 22:50:14,219 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 0 case distinctions, treesize of input 16 treesize of output 5 [2023-03-31 22:50:14,257 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2023-03-31 22:50:14,266 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2023-03-31 22:50:14,273 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 8 treesize of output 7 [2023-03-31 22:50:14,281 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 8 treesize of output 7 [2023-03-31 22:50:14,288 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 0 case distinctions, treesize of input 16 treesize of output 5 [2023-03-31 22:50:14,293 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 [2023-03-31 22:50:14,324 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 [2023-03-31 22:50:14,335 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 [2023-03-31 22:50:14,622 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 0 case distinctions, treesize of input 702 treesize of output 688 [2023-03-31 22:50:14,663 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-03-31 22:50:14,663 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 678 treesize of output 512 [2023-03-31 22:50:14,690 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-03-31 22:50:14,691 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 2 case distinctions, treesize of input 891 treesize of output 756 [2023-03-31 22:50:14,828 INFO L321 Elim1Store]: treesize reduction 247, result has 17.1 percent of original size [2023-03-31 22:50:14,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 787 treesize of output 1246 [2023-03-31 22:50:14,911 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2023-03-31 22:50:14,911 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 742 treesize of output 696 [2023-03-31 22:50:15,113 INFO L321 Elim1Store]: treesize reduction 353, result has 13.7 percent of original size [2023-03-31 22:50:15,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 694 treesize of output 844 [2023-03-31 22:50:15,183 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 1163 treesize of output 1037 [2023-03-31 22:50:15,243 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 1074 treesize of output 832 [2023-03-31 22:50:15,461 INFO L321 Elim1Store]: treesize reduction 290, result has 6.5 percent of original size [2023-03-31 22:50:15,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 1422 treesize of output 1404 [2023-03-31 22:50:15,659 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2023-03-31 22:50:15,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 639 treesize of output 675 [2023-03-31 22:50:15,924 INFO L321 Elim1Store]: treesize reduction 246, result has 23.8 percent of original size [2023-03-31 22:50:15,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 700 treesize of output 776 [2023-03-31 22:50:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:16,674 INFO L321 Elim1Store]: treesize reduction 549, result has 19.6 percent of original size [2023-03-31 22:50:16,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 29 case distinctions, treesize of input 1502 treesize of output 2857 [2023-03-31 22:50:17,500 INFO L217 Elim1Store]: Index analysis took 177 ms [2023-03-31 22:50:17,579 INFO L321 Elim1Store]: treesize reduction 101, result has 10.6 percent of original size [2023-03-31 22:50:17,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 17 case distinctions, treesize of input 614 treesize of output 3368 [2023-03-31 22:50:20,810 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 [2023-03-31 22:50:23,541 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 180 treesize of output 172 [2023-03-31 22:50:26,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:26,784 INFO L321 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2023-03-31 22:50:26,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 328 treesize of output 321 [2023-03-31 22:50:27,132 INFO L321 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2023-03-31 22:50:27,133 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 331 treesize of output 311 [2023-03-31 22:50:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:27,422 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 22:50:27,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 107 [2023-03-31 22:50:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:50:27,656 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 93 [2023-03-31 22:50:28,145 INFO L321 Elim1Store]: treesize reduction 64, result has 48.0 percent of original size [2023-03-31 22:50:28,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 1336 treesize of output 1303 [2023-03-31 22:50:28,258 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:50:28,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31