/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 OctagonDomain -i ../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:51:38,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:51:38,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:51:38,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:51:38,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:51:38,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:51:38,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:51:38,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:51:38,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:51:38,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:51:38,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:51:38,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:51:38,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:51:38,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:51:38,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:51:38,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:51:38,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:51:38,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:51:38,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:51:38,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:51:38,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:51:38,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:51:38,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:51:38,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:51:38,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:51:38,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:51:38,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:51:38,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:51:38,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:51:38,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:51:38,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:51:38,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:51:38,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:51:38,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:51:38,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:51:38,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:51:38,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:51:38,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:51:38,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:51:38,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:51:38,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:51:38,788 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 [2023-04-01 04:51:38,826 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:51:38,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:51:38,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:51:38,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:51:38,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:51:38,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:51:38,829 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:51:38,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:51:38,829 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:51:38,829 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:51:38,830 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:51:38,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:51:38,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:51:38,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:51:38,830 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:51:38,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:51:38,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:51:38,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:51:38,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:51:38,831 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:51:38,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:51:38,833 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:51:38,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:51:38,833 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:51:38,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:51:38,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:51:38,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:51:38,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:51:38,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:51:38,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:51:38,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:51:39,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:51:39,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:51:39,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:51:39,083 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:51:39,083 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:51:39,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-04-01 04:51:40,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:51:40,460 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:51:40,461 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-04-01 04:51:40,480 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0b79858/dab8fb44fc4e41a58e8aad09330f59f7/FLAGd96ccdc97 [2023-04-01 04:51:40,493 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0b79858/dab8fb44fc4e41a58e8aad09330f59f7 [2023-04-01 04:51:40,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:51:40,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:51:40,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:51:40,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:51:40,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:51:40,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2a7b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40, skipping insertion in model container [2023-04-01 04:51:40,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:51:40,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:51:40,802 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/sll-rb-cnstr_1-1.i[22480,22493] [2023-04-01 04:51:40,808 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/sll-rb-cnstr_1-1.i[22552,22565] [2023-04-01 04:51:40,809 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/sll-rb-cnstr_1-1.i[22704,22717] [2023-04-01 04:51:40,810 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/sll-rb-cnstr_1-1.i[22778,22791] [2023-04-01 04:51:40,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:51:40,823 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:51:40,851 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/sll-rb-cnstr_1-1.i[22480,22493] [2023-04-01 04:51:40,852 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/sll-rb-cnstr_1-1.i[22552,22565] [2023-04-01 04:51:40,854 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/sll-rb-cnstr_1-1.i[22704,22717] [2023-04-01 04:51:40,854 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/sll-rb-cnstr_1-1.i[22778,22791] [2023-04-01 04:51:40,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:51:40,880 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:51:40,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40 WrapperNode [2023-04-01 04:51:40,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:51:40,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:51:40,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:51:40,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:51:40,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:51:40,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:51:40,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:51:40,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:51:40,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (1/1) ... [2023-04-01 04:51:40,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:51:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:51:40,981 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) [2023-04-01 04:51:40,982 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 [2023-04-01 04:51:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:51:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:51:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:51:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-01 04:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-01 04:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-01 04:51:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-01 04:51:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-01 04:51:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-01 04:51:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-01 04:51:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-01 04:51:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-01 04:51:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-01 04:51:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-01 04:51:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-01 04:51:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-01 04:51:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-01 04:51:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-01 04:51:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-01 04:51:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-01 04:51:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-01 04:51:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-01 04:51:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-01 04:51:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-01 04:51:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-01 04:51:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-01 04:51:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-01 04:51:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-01 04:51:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-01 04:51:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-01 04:51:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-01 04:51:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-01 04:51:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-01 04:51:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 04:51:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-01 04:51:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-01 04:51:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-01 04:51:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-01 04:51:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-01 04:51:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-01 04:51:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-01 04:51:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-01 04:51:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 04:51:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:51:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 04:51:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 04:51:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:51:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:51:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:51:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 04:51:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 04:51:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:51:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 04:51:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:51:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:51:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:51:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:51:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:51:41,323 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:51:41,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:51:41,506 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:51:41,592 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:51:41,592 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-04-01 04:51:41,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:51:41 BoogieIcfgContainer [2023-04-01 04:51:41,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:51:41,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:51:41,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:51:41,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:51:41,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:51:40" (1/3) ... [2023-04-01 04:51:41,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77776553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:51:41, skipping insertion in model container [2023-04-01 04:51:41,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:51:40" (2/3) ... [2023-04-01 04:51:41,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77776553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:51:41, skipping insertion in model container [2023-04-01 04:51:41,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:51:41" (3/3) ... [2023-04-01 04:51:41,607 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-1.i [2023-04-01 04:51:41,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:51:41,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-04-01 04:51:41,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:51:41,687 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;@122c6143, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:51:41,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-04-01 04:51:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.875) internal successors, (45), 28 states have internal predecessors, (45), 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) [2023-04-01 04:51:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-04-01 04:51:41,697 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:41,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:41,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:41,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:41,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1533822277, now seen corresponding path program 1 times [2023-04-01 04:51:41,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866388621] [2023-04-01 04:51:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:41,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:41,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866388621] [2023-04-01 04:51:41,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866388621] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:51:41,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:51:41,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:51:41,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855630600] [2023-04-01 04:51:41,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:51:41,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:51:41,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:41,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:51:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:51:41,905 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.875) internal successors, (45), 28 states have internal predecessors, (45), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-04-01 04:51:41,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:41,973 INFO L93 Difference]: Finished difference Result 59 states and 89 transitions. [2023-04-01 04:51:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:51:41,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 9 [2023-04-01 04:51:41,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:41,981 INFO L225 Difference]: With dead ends: 59 [2023-04-01 04:51:41,982 INFO L226 Difference]: Without dead ends: 29 [2023-04-01 04:51:41,985 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 [2023-04-01 04:51:41,991 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:51:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-04-01 04:51:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-04-01 04:51:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 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) [2023-04-01 04:51:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-04-01 04:51:42,035 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2023-04-01 04:51:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:42,035 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-04-01 04:51:42,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-04-01 04:51:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-04-01 04:51:42,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-04-01 04:51:42,036 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:42,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:42,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:51:42,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:42,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:42,037 INFO L85 PathProgramCache]: Analyzing trace with hash 291481305, now seen corresponding path program 1 times [2023-04-01 04:51:42,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:42,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799537752] [2023-04-01 04:51:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:42,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:42,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:42,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799537752] [2023-04-01 04:51:42,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799537752] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:51:42,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:51:42,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 04:51:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629694482] [2023-04-01 04:51:42,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:51:42,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 04:51:42,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 04:51:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 04:51:42,174 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-04-01 04:51:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:42,225 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-04-01 04:51:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 04:51:42,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 10 [2023-04-01 04:51:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:42,226 INFO L225 Difference]: With dead ends: 32 [2023-04-01 04:51:42,226 INFO L226 Difference]: Without dead ends: 30 [2023-04-01 04:51:42,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:51:42,228 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:42,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:51:42,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-04-01 04:51:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-04-01 04:51:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 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) [2023-04-01 04:51:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-04-01 04:51:42,233 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2023-04-01 04:51:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:42,234 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-04-01 04:51:42,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-04-01 04:51:42,234 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-04-01 04:51:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-04-01 04:51:42,234 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:42,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:42,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:51:42,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:42,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash -900362889, now seen corresponding path program 1 times [2023-04-01 04:51:42,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:42,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400417011] [2023-04-01 04:51:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:42,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:42,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400417011] [2023-04-01 04:51:42,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400417011] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:51:42,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:51:42,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:51:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228208302] [2023-04-01 04:51:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:51:42,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:51:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:51:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:51:42,412 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-04-01 04:51:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:42,520 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2023-04-01 04:51:42,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 04:51:42,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 13 [2023-04-01 04:51:42,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:42,521 INFO L225 Difference]: With dead ends: 52 [2023-04-01 04:51:42,521 INFO L226 Difference]: Without dead ends: 50 [2023-04-01 04:51:42,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-01 04:51:42,523 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:42,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 04:51:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-04-01 04:51:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2023-04-01 04:51:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 30 states have internal predecessors, (34), 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) [2023-04-01 04:51:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-04-01 04:51:42,534 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2023-04-01 04:51:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:42,534 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-04-01 04:51:42,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-04-01 04:51:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-04-01 04:51:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-01 04:51:42,535 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:42,535 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:42,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 04:51:42,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:42,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1140006974, now seen corresponding path program 1 times [2023-04-01 04:51:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678135015] [2023-04-01 04:51:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:43,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678135015] [2023-04-01 04:51:43,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678135015] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:51:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845371705] [2023-04-01 04:51:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:43,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:51:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:51:43,304 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) [2023-04-01 04:51:43,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 04:51:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:43,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-01 04:51:43,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:51:43,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:51:43,576 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 [2023-04-01 04:51:43,809 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 183 treesize of output 177 [2023-04-01 04:51:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:43,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 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 159 treesize of output 191 [2023-04-01 04:51:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:43,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 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 147 treesize of output 179 [2023-04-01 04:51:43,961 INFO L321 Elim1Store]: treesize reduction 86, result has 26.5 percent of original size [2023-04-01 04:51:43,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 156 treesize of output 194 [2023-04-01 04:51:44,024 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-01 04:51:44,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 157 [2023-04-01 04:51:44,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 147 [2023-04-01 04:51:44,127 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2023-04-01 04:51:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:44,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 72 [2023-04-01 04:51:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:44,348 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-04-01 04:51:44,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2023-04-01 04:51:44,392 INFO L321 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2023-04-01 04:51:44,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 78 [2023-04-01 04:51:44,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2023-04-01 04:51:44,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:44,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:51:44,706 INFO L321 Elim1Store]: treesize reduction 20, result has 63.6 percent of original size [2023-04-01 04:51:44,707 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 4 case distinctions, treesize of input 196 treesize of output 243 [2023-04-01 04:51:44,766 INFO L321 Elim1Store]: treesize reduction 20, result has 63.6 percent of original size [2023-04-01 04:51:44,766 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 4 case distinctions, treesize of input 184 treesize of output 231 [2023-04-01 04:51:44,820 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2023-04-01 04:51:44,821 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 3 case distinctions, treesize of input 172 treesize of output 201 [2023-04-01 04:51:44,868 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:44,869 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2023-04-01 04:51:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845371705] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:51:45,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898698214] [2023-04-01 04:51:45,154 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-04-01 04:51:45,154 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:51:45,157 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:51:45,162 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:51:45,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:51:45,213 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:51:45,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:51:45,383 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:51:45,636 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '461#(and (<= 1 |#StackHeapBarrier|) (= main_~list~0.base main_~end~0.base) (= main_~end~0.offset 0) (<= (+ main_~list~0.base 1) |#StackHeapBarrier|) (not (= main_~end~0.base 0)) (= main_~list~0.offset 0) (not (= 1 (select (select |#memory_int| main_~end~0.base) 4))) (= |#NULL.offset| 0) (= |#NULL.base| 0))' at error location [2023-04-01 04:51:45,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:51:45,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:51:45,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-04-01 04:51:45,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023253509] [2023-04-01 04:51:45,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:51:45,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 04:51:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:45,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 04:51:45,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2023-04-01 04:51:45,638 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2023-04-01 04:51:45,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:45,909 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-04-01 04:51:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 04:51:45,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 15 [2023-04-01 04:51:45,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:45,911 INFO L225 Difference]: With dead ends: 41 [2023-04-01 04:51:45,911 INFO L226 Difference]: Without dead ends: 39 [2023-04-01 04:51:45,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2023-04-01 04:51:45,913 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 94 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:45,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 67 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 04:51:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-04-01 04:51:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2023-04-01 04:51:45,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-04-01 04:51:45,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-04-01 04:51:45,920 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2023-04-01 04:51:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:45,920 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-04-01 04:51:45,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2023-04-01 04:51:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-04-01 04:51:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 04:51:45,921 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:45,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:45,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 04:51:46,128 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 [2023-04-01 04:51:46,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:46,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1756125086, now seen corresponding path program 1 times [2023-04-01 04:51:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:46,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775496234] [2023-04-01 04:51:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:46,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:46,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775496234] [2023-04-01 04:51:46,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775496234] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:51:46,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:51:46,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:51:46,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490737774] [2023-04-01 04:51:46,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:51:46,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:51:46,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:46,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:51:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:51:46,185 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-04-01 04:51:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:46,327 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-04-01 04:51:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 04:51:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 17 [2023-04-01 04:51:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:46,328 INFO L225 Difference]: With dead ends: 40 [2023-04-01 04:51:46,328 INFO L226 Difference]: Without dead ends: 28 [2023-04-01 04:51:46,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 04:51:46,329 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:46,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 04:51:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-04-01 04:51:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-04-01 04:51:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 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) [2023-04-01 04:51:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-04-01 04:51:46,337 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 17 [2023-04-01 04:51:46,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:46,337 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-04-01 04:51:46,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-04-01 04:51:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-04-01 04:51:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 04:51:46,338 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:46,338 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 04:51:46,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:46,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash 844889653, now seen corresponding path program 1 times [2023-04-01 04:51:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:46,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491249107] [2023-04-01 04:51:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:46,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:46,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491249107] [2023-04-01 04:51:46,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491249107] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:51:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559281576] [2023-04-01 04:51:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:46,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:51:46,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:51:46,473 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) [2023-04-01 04:51:46,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 04:51:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:46,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-01 04:51:46,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:51:46,606 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 14 treesize of output 15 [2023-04-01 04:51:46,612 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 14 treesize of output 15 [2023-04-01 04:51:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:46,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:51:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559281576] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:51:46,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [151985404] [2023-04-01 04:51:46,754 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-04-01 04:51:46,754 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:51:46,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:51:46,755 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:51:46,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:51:46,776 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:51:46,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:51:46,897 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:51:47,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '791#(and (<= 1 |#StackHeapBarrier|) (= main_~end~0.offset 0) (<= (+ main_~list~0.base 1) |#StackHeapBarrier|) (exists ((v_main_~end~0.offset_45 Int) (v_main_~end~0.base_48 Int)) (and (= (select (select |#memory_$Pointer$.base| v_main_~end~0.base_48) v_main_~end~0.offset_45) 0) (or (not (= v_main_~end~0.base_48 0)) (not (= v_main_~end~0.offset_45 0))) (= (select (select |#memory_$Pointer$.offset| v_main_~end~0.base_48) v_main_~end~0.offset_45) 0) (= (select (select |#memory_int| v_main_~end~0.base_48) (+ v_main_~end~0.offset_45 4)) 0))) (= main_~end~0.base 0) (= main_~list~0.offset 0) (= |#NULL.offset| 0) (= |#NULL.base| 0))' at error location [2023-04-01 04:51:47,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:51:47,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:51:47,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-04-01 04:51:47,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548050204] [2023-04-01 04:51:47,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:51:47,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 04:51:47,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:51:47,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 04:51:47,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-04-01 04:51:47,665 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2023-04-01 04:51:47,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:51:47,884 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2023-04-01 04:51:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 04:51:47,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 20 [2023-04-01 04:51:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:51:47,886 INFO L225 Difference]: With dead ends: 51 [2023-04-01 04:51:47,886 INFO L226 Difference]: Without dead ends: 29 [2023-04-01 04:51:47,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-04-01 04:51:47,887 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 18 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 04:51:47,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 89 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 04:51:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-04-01 04:51:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-04-01 04:51:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 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) [2023-04-01 04:51:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-04-01 04:51:47,894 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 20 [2023-04-01 04:51:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:51:47,894 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-04-01 04:51:47,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2023-04-01 04:51:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-04-01 04:51:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-01 04:51:47,895 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:51:47,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:51:47,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 04:51:48,101 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,SelfDestructingSolverStorable5 [2023-04-01 04:51:48,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:51:48,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:51:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1237323150, now seen corresponding path program 1 times [2023-04-01 04:51:48,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:51:48,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756241836] [2023-04-01 04:51:48,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:51:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:49,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:51:49,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756241836] [2023-04-01 04:51:49,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756241836] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:51:49,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070201354] [2023-04-01 04:51:49,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:51:49,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:51:49,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:51:49,232 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) [2023-04-01 04:51:49,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 04:51:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:51:49,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-01 04:51:49,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:51:49,401 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 [2023-04-01 04:51:49,502 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-01 04:51:49,502 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 184 treesize of output 213 [2023-04-01 04:51:49,519 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 0 case distinctions, treesize of input 175 treesize of output 186 [2023-04-01 04:51:49,593 INFO L321 Elim1Store]: treesize reduction 86, result has 26.5 percent of original size [2023-04-01 04:51:49,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 176 treesize of output 219 [2023-04-01 04:51:49,620 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 151 treesize of output 143 [2023-04-01 04:51:49,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 163 [2023-04-01 04:51:49,679 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 129 treesize of output 121 [2023-04-01 04:51:49,709 INFO L321 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2023-04-01 04:51:49,710 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 306 treesize of output 278 [2023-04-01 04:51:49,755 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 [2023-04-01 04:51:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:51:49,854 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2023-04-01 04:51:49,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 129 [2023-04-01 04:51:49,927 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:51:49,929 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 42 treesize of output 5 [2023-04-01 04:51:50,028 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 25 treesize of output 20 [2023-04-01 04:51:50,059 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 16 treesize of output 1 [2023-04-01 04:51:50,067 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:51:50,069 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-04-01 04:51:50,069 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-04-01 04:51:50,088 INFO L321 Elim1Store]: treesize reduction 4, result has 81.0 percent of original size [2023-04-01 04:51:50,089 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 34 [2023-04-01 04:51:50,113 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:51:50,120 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-04-01 04:51:50,120 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 48 [2023-04-01 04:51:50,131 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-04-01 04:51:50,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 58 [2023-04-01 04:51:50,537 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 511 treesize of output 495 [2023-04-01 04:51:50,567 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 107 treesize of output 105 [2023-04-01 04:51:50,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:50,699 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 118 [2023-04-01 04:51:50,835 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:51:50,839 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:51:50,840 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 52 treesize of output 23 [2023-04-01 04:51:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:51:50,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:51:51,054 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:51,055 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 4 case distinctions, treesize of input 205 treesize of output 219 [2023-04-01 04:51:51,103 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2023-04-01 04:51:51,103 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 3 case distinctions, treesize of input 194 treesize of output 228 [2023-04-01 04:51:51,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:51,129 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 178 [2023-04-01 04:51:51,170 INFO L321 Elim1Store]: treesize reduction 31, result has 43.6 percent of original size [2023-04-01 04:51:51,171 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 4 case distinctions, treesize of input 178 treesize of output 202 [2023-04-01 04:51:51,200 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:51,201 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 156 [2023-04-01 04:51:51,262 INFO L321 Elim1Store]: treesize reduction 31, result has 43.6 percent of original size [2023-04-01 04:51:51,263 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 310 treesize of output 298 [2023-04-01 04:51:51,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:51,312 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 1 case distinctions, treesize of input 11 treesize of output 10 [2023-04-01 04:51:51,406 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 1 [2023-04-01 04:51:51,447 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 6 treesize of output 4 [2023-04-01 04:51:51,484 INFO L321 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2023-04-01 04:51:51,484 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 48 treesize of output 44 [2023-04-01 04:51:51,494 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 31 treesize of output 27 [2023-04-01 04:51:51,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:51,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 711 treesize of output 797 [2023-04-01 04:51:51,622 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 338 treesize of output 322 [2023-04-01 04:51:51,633 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 322 treesize of output 290 [2023-04-01 04:51:57,690 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:51:57,694 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 17959 treesize of output 16898 [2023-04-01 04:51:58,154 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 12097 treesize of output 12093 [2023-04-01 04:51:58,306 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 12093 treesize of output 12089 [2023-04-01 04:51:58,420 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 12089 treesize of output 12081 [2023-04-01 04:51:58,537 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 12081 treesize of output 12079 [2023-04-01 04:51:58,701 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 12079 treesize of output 12077 [2023-04-01 04:51:58,850 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 12077 treesize of output 12073 [2023-04-01 04:51:59,035 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 12073 treesize of output 12069 [2023-04-01 04:51:59,233 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 12069 treesize of output 12065 [2023-04-01 04:51:59,480 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 12065 treesize of output 12061 [2023-04-01 04:51:59,604 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 12061 treesize of output 12059 [2023-04-01 04:51:59,880 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 12059 treesize of output 12055 [2023-04-01 04:52:00,185 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 12055 treesize of output 12051 [2023-04-01 04:52:00,503 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 12051 treesize of output 12049 [2023-04-01 04:52:00,871 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 12049 treesize of output 12045 [2023-04-01 04:52:01,258 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 12045 treesize of output 12043 [2023-04-01 04:52:01,658 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 12043 treesize of output 12041 [2023-04-01 04:52:02,064 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 12041 treesize of output 12039 [2023-04-01 04:52:02,477 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 12039 treesize of output 12035 [2023-04-01 04:52:02,860 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 12035 treesize of output 12027 [2023-04-01 04:52:03,237 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 12027 treesize of output 12025 [2023-04-01 04:52:03,617 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 12025 treesize of output 12021 [2023-04-01 04:52:03,996 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 12021 treesize of output 12017 [2023-04-01 04:52:04,379 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 12017 treesize of output 12015 [2023-04-01 04:52:04,813 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 12015 treesize of output 12011 [2023-04-01 04:52:05,246 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 12011 treesize of output 12007 [2023-04-01 04:52:05,681 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 12007 treesize of output 12005 [2023-04-01 04:52:06,087 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 12005 treesize of output 12001 [2023-04-01 04:52:06,528 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 12001 treesize of output 11999 [2023-04-01 04:52:07,051 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 11999 treesize of output 11995 [2023-04-01 04:52:07,459 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 11995 treesize of output 11993 [2023-04-01 04:52:07,872 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 11993 treesize of output 11989 [2023-04-01 04:52:08,287 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 11989 treesize of output 11987 [2023-04-01 04:52:08,679 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 11987 treesize of output 11985 [2023-04-01 04:52:09,076 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 11985 treesize of output 11983 [2023-04-01 04:52:09,477 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 11983 treesize of output 11979 [2023-04-01 04:52:09,896 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 11979 treesize of output 11977 [2023-04-01 04:52:10,294 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 11977 treesize of output 11973 [2023-04-01 04:52:10,701 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 11973 treesize of output 11969 [2023-04-01 04:52:11,127 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 11969 treesize of output 11965 [2023-04-01 04:52:11,579 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 11965 treesize of output 11957 [2023-04-01 04:52:12,039 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 11957 treesize of output 11953 [2023-04-01 04:52:12,485 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 11953 treesize of output 11949 [2023-04-01 04:52:12,933 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 11949 treesize of output 11947 [2023-04-01 04:52:13,377 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 11947 treesize of output 11943 [2023-04-01 04:52:13,950 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 11943 treesize of output 11939 [2023-04-01 04:52:14,415 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 11939 treesize of output 11931 [2023-04-01 04:52:14,946 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 11931 treesize of output 11927 [2023-04-01 04:52:15,394 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 11927 treesize of output 11925 [2023-04-01 04:52:15,842 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 11925 treesize of output 11917 [2023-04-01 04:52:16,285 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 11917 treesize of output 11915 [2023-04-01 04:52:16,886 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 11915 treesize of output 11911 [2023-04-01 04:52:17,502 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 11911 treesize of output 11903 [2023-04-01 04:52:18,126 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 11903 treesize of output 11899 [2023-04-01 04:52:18,693 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 11899 treesize of output 11895 [2023-04-01 04:52:19,261 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 11895 treesize of output 11887 [2023-04-01 04:52:19,640 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 11887 treesize of output 11883 [2023-04-01 04:52:20,220 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 11883 treesize of output 11881 [2023-04-01 04:52:20,807 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 11881 treesize of output 11877 [2023-04-01 04:52:21,425 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 11877 treesize of output 11875 [2023-04-01 04:52:21,840 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 11875 treesize of output 11871 [2023-04-01 04:52:22,476 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 11871 treesize of output 11863 [2023-04-01 04:52:23,094 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 11863 treesize of output 11859 [2023-04-01 04:52:23,665 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 11859 treesize of output 11857 [2023-04-01 04:52:24,249 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 11857 treesize of output 11853 [2023-04-01 04:52:24,708 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 11853 treesize of output 11851 [2023-04-01 04:52:25,372 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 11851 treesize of output 11849 [2023-04-01 04:52:25,944 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 11849 treesize of output 11847 [2023-04-01 04:52:26,514 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 11847 treesize of output 11843 [2023-04-01 04:52:26,891 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 11843 treesize of output 11835 [2023-04-01 04:52:27,270 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 11835 treesize of output 11833 [2023-04-01 04:52:27,648 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 11833 treesize of output 11829 [2023-04-01 04:52:28,238 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 11829 treesize of output 11825 [2023-04-01 04:52:28,839 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 11825 treesize of output 11821 [2023-04-01 04:52:29,557 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 11821 treesize of output 11813 [2023-04-01 04:52:30,350 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 11813 treesize of output 11809 [2023-04-01 04:52:30,974 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 11809 treesize of output 11805 [2023-04-01 04:52:31,423 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 11805 treesize of output 11803 [2023-04-01 04:52:32,084 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 11803 treesize of output 11801 [2023-04-01 04:52:32,723 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 11801 treesize of output 11797 [2023-04-01 04:52:33,195 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 11797 treesize of output 11793 [2023-04-01 04:52:33,848 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 11793 treesize of output 11791 [2023-04-01 04:52:34,334 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 11791 treesize of output 11789 [2023-04-01 04:52:34,814 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 11789 treesize of output 11785 [2023-04-01 04:52:35,649 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 11785 treesize of output 11783 [2023-04-01 04:52:36,323 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 11783 treesize of output 11779 [2023-04-01 04:52:37,022 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 11779 treesize of output 11775 [2023-04-01 04:52:37,731 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 11775 treesize of output 11767 [2023-04-01 04:52:38,244 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 11767 treesize of output 11763 [2023-04-01 04:52:38,958 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 11763 treesize of output 11761 [2023-04-01 04:52:39,746 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 11761 treesize of output 11759 [2023-04-01 04:52:40,169 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 11759 treesize of output 11757 [2023-04-01 04:52:40,756 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 11757 treesize of output 11755 [2023-04-01 04:52:41,375 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 11755 treesize of output 11751 [2023-04-01 04:52:42,060 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 11751 treesize of output 11747 [2023-04-01 04:52:42,902 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 11747 treesize of output 11745 [2023-04-01 04:52:43,601 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 11745 treesize of output 11743 [2023-04-01 04:52:44,308 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 11743 treesize of output 11739