/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:52:16,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:52:16,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:52:16,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:52:16,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:52:16,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:52:16,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:52:16,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:52:16,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:52:16,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:52:16,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:52:16,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:52:16,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:52:16,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:52:16,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:52:16,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:52:16,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:52:16,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:52:16,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:52:16,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:52:16,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:52:16,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:52:16,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:52:16,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:52:16,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:52:16,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:52:16,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:52:16,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:52:16,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:52:16,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:52:16,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:52:16,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:52:16,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:52:16,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:52:16,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:52:16,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:52:16,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:52:16,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:52:16,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:52:16,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:52:16,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:52:16,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 22:52:16,976 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:52:16,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:52:16,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:52:16,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:52:16,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:52:16,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:52:16,978 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:52:16,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:52:16,979 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:52:16,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:52:16,979 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:52:16,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:52:16,980 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:52:16,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:52:16,981 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:52:16,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:52:16,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:52:16,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:52:16,982 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:52:16,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:52:16,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:52:16,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:52:16,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:52:16,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:52:16,983 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:52:16,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:52:16,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:52:17,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:52:17,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:52:17,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:52:17,246 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:52:17,247 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:52:17,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2023-03-31 22:52:18,399 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:52:18,657 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:52:18,658 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2023-03-31 22:52:18,671 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3dda43f/0f48317dbec049be9459d12a7e2c5508/FLAG94685a721 [2023-03-31 22:52:18,682 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3dda43f/0f48317dbec049be9459d12a7e2c5508 [2023-03-31 22:52:18,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:52:18,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:52:18,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:52:18,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:52:18,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:52:18,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:52:18" (1/1) ... [2023-03-31 22:52:18,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac2398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:18, skipping insertion in model container [2023-03-31 22:52:18,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:52:18" (1/1) ... [2023-03-31 22:52:18,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:52:18,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:52:19,004 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/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2023-03-31 22:52:19,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:52:19,020 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:52:19,052 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/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2023-03-31 22:52:19,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:52:19,079 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:52:19,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19 WrapperNode [2023-03-31 22:52:19,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:52:19,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:52:19,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:52:19,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:52:19,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:52:19,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:52:19,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:52:19,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:52:19,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (1/1) ... [2023-03-31 22:52:19,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:52:19,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:19,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 22:52:19,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 22:52:19,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:52:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:52:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:52:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-03-31 22:52:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-03-31 22:52:19,222 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-03-31 22:52:19,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:52:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 22:52:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-03-31 22:52:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 22:52:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 22:52:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 22:52:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 22:52:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-03-31 22:52:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 22:52:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 22:52:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 22:52:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 22:52:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 22:52:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:52:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:52:19,466 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:52:19,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:52:19,519 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-03-31 22:52:19,831 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:52:19,968 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:52:19,969 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-03-31 22:52:19,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:52:19 BoogieIcfgContainer [2023-03-31 22:52:19,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:52:19,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:52:19,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:52:19,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:52:19,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:52:18" (1/3) ... [2023-03-31 22:52:19,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f387ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:52:19, skipping insertion in model container [2023-03-31 22:52:19,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:52:19" (2/3) ... [2023-03-31 22:52:19,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f387ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:52:19, skipping insertion in model container [2023-03-31 22:52:19,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:52:19" (3/3) ... [2023-03-31 22:52:19,981 INFO L112 eAbstractionObserver]: Analyzing ICFG list_and_tree_cnstr-2.i [2023-03-31 22:52:19,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:52:19,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:52:20,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:52:20,038 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;@3a455f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:52:20,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:52:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 34 states have (on average 1.588235294117647) internal successors, (54), 37 states have internal predecessors, (54), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 22:52:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-03-31 22:52:20,048 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:20,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:20,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:20,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1546310716, now seen corresponding path program 1 times [2023-03-31 22:52:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:20,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367426208] [2023-03-31 22:52:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:52:20,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:20,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367426208] [2023-03-31 22:52:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367426208] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:52:20,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:52:20,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:52:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31271691] [2023-03-31 22:52:20,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:52:20,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:52:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:20,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:52:20,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:52:20,321 INFO L87 Difference]: Start difference. First operand has 43 states, 34 states have (on average 1.588235294117647) internal successors, (54), 37 states have internal predecessors, (54), 5 states have call successors, (5), 3 states have call predecessors, (5), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:20,418 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2023-03-31 22:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:52:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 18 [2023-03-31 22:52:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:20,427 INFO L225 Difference]: With dead ends: 81 [2023-03-31 22:52:20,428 INFO L226 Difference]: Without dead ends: 34 [2023-03-31 22:52:20,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:52:20,437 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:20,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 22:52:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-03-31 22:52:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-03-31 22:52:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-03-31 22:52:20,475 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 18 [2023-03-31 22:52:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:20,475 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-03-31 22:52:20,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-03-31 22:52:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-03-31 22:52:20,478 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:20,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:20,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:52:20,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:20,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1523122818, now seen corresponding path program 1 times [2023-03-31 22:52:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:20,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113073043] [2023-03-31 22:52:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:20,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:52:20,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:20,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113073043] [2023-03-31 22:52:20,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113073043] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:52:20,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:52:20,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 22:52:20,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182868310] [2023-03-31 22:52:20,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:52:20,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 22:52:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 22:52:20,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 22:52:20,610 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:20,705 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2023-03-31 22:52:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 22:52:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 23 [2023-03-31 22:52:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:20,707 INFO L225 Difference]: With dead ends: 57 [2023-03-31 22:52:20,707 INFO L226 Difference]: Without dead ends: 38 [2023-03-31 22:52:20,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 22:52:20,709 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:20,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 57 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 22:52:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-03-31 22:52:20,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2023-03-31 22:52:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-03-31 22:52:20,717 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2023-03-31 22:52:20,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:20,717 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-03-31 22:52:20,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-03-31 22:52:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 22:52:20,719 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:20,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:20,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:52:20,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:20,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:20,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1855382342, now seen corresponding path program 1 times [2023-03-31 22:52:20,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:20,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875648921] [2023-03-31 22:52:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:20,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:21,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875648921] [2023-03-31 22:52:21,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875648921] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:52:21,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:52:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:52:21,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790447367] [2023-03-31 22:52:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:52:21,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:52:21,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:21,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:52:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:52:21,058 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2023-03-31 22:52:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:21,483 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2023-03-31 22:52:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 22:52:21,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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 27 [2023-03-31 22:52:21,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:21,485 INFO L225 Difference]: With dead ends: 60 [2023-03-31 22:52:21,485 INFO L226 Difference]: Without dead ends: 56 [2023-03-31 22:52:21,486 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 [2023-03-31 22:52:21,487 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:21,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 94 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 22:52:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-03-31 22:52:21,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2023-03-31 22:52:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.275) internal successors, (51), 40 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2023-03-31 22:52:21,495 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 27 [2023-03-31 22:52:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:21,495 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2023-03-31 22:52:21,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2023-03-31 22:52:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-03-31 22:52:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 22:52:21,496 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:21,496 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:21,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 22:52:21,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:21,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash 462380597, now seen corresponding path program 1 times [2023-03-31 22:52:21,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:21,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166037958] [2023-03-31 22:52:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:21,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:21,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166037958] [2023-03-31 22:52:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166037958] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:52:21,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:52:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:52:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438455224] [2023-03-31 22:52:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:52:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:52:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:52:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:52:21,642 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:22,142 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2023-03-31 22:52:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 22:52:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2023-03-31 22:52:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:22,144 INFO L225 Difference]: With dead ends: 64 [2023-03-31 22:52:22,144 INFO L226 Difference]: Without dead ends: 56 [2023-03-31 22:52:22,144 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 [2023-03-31 22:52:22,145 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:22,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 97 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 22:52:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-03-31 22:52:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2023-03-31 22:52:22,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.25) internal successors, (50), 40 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-03-31 22:52:22,151 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 29 [2023-03-31 22:52:22,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:22,151 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-03-31 22:52:22,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-03-31 22:52:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 22:52:22,152 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:22,152 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:22,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 22:52:22,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:22,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -562322379, now seen corresponding path program 1 times [2023-03-31 22:52:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:22,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210679486] [2023-03-31 22:52:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:22,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:22,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:22,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210679486] [2023-03-31 22:52:22,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210679486] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:52:22,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:52:22,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:52:22,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744896502] [2023-03-31 22:52:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:52:22,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:52:22,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:22,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:52:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:52:22,274 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:22,603 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2023-03-31 22:52:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 22:52:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2023-03-31 22:52:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:22,604 INFO L225 Difference]: With dead ends: 62 [2023-03-31 22:52:22,604 INFO L226 Difference]: Without dead ends: 51 [2023-03-31 22:52:22,605 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 [2023-03-31 22:52:22,605 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:22,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 86 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 22:52:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-03-31 22:52:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2023-03-31 22:52:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 35 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2023-03-31 22:52:22,609 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 29 [2023-03-31 22:52:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:22,610 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2023-03-31 22:52:22,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-03-31 22:52:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-03-31 22:52:22,611 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:22,611 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:22,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 22:52:22,611 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:22,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1415455969, now seen corresponding path program 1 times [2023-03-31 22:52:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:22,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491963467] [2023-03-31 22:52:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:22,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:22,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491963467] [2023-03-31 22:52:22,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491963467] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863485] [2023-03-31 22:52:22,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:22,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:22,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:22,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:52:23,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 22:52:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:23,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjunts are in the unsatisfiable core [2023-03-31 22:52:23,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:23,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:23,389 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 [2023-03-31 22:52:23,405 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:23,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:23,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-03-31 22:52:23,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-03-31 22:52:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:23,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:23,577 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_241 (Array Int Int))) (= 2 (select (select (store |c_#memory_int| c_main_~p~0.base v_ArrVal_241) c_main_~a~0.base) c_main_~a~0.offset))) is different from false [2023-03-31 22:52:23,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:23,644 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 2 case distinctions, treesize of input 23 treesize of output 29 [2023-03-31 22:52:23,656 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:23,657 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 30 treesize of output 33 [2023-03-31 22:52:23,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-03-31 22:52:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-03-31 22:52:23,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863485] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:23,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [662809507] [2023-03-31 22:52:23,813 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:23,813 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:23,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:23,821 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:23,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:23,875 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:24,588 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:24,593 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:26,113 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '980#(and (= main_~a~0.offset main_~p~0.offset) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 1)) (= main_~a~0.base main_~p~0.base) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (exists ((v_main_~p~0.base_25 Int) (v_main_~p~0.offset_23 Int) (|v_#memory_$Pointer$.base_91| (Array Int (Array Int Int))) (|v_#memory_int_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_90| (Array Int (Array Int Int)))) (and (or (and (= main_~root~0.offset 0) (= main_~a~0.offset 0) (= main_~n~0.offset 0) (= main_~root~0.base 0) (= v_main_~p~0.offset_23 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= main_~root~0.offset 0) (= main_~a~0.offset 0) (= main_~n~0.offset 0) (= main_~root~0.base 0) (= main_~t~0.offset 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_90| v_main_~p~0.base_25 (store (select |v_#memory_$Pointer$.offset_90| v_main_~p~0.base_25) v_main_~p~0.offset_23 (select (select |#memory_$Pointer$.offset| v_main_~p~0.base_25) v_main_~p~0.offset_23)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_91| v_main_~p~0.base_25 (store (select |v_#memory_$Pointer$.base_91| v_main_~p~0.base_25) v_main_~p~0.offset_23 (select (select |#memory_$Pointer$.base| v_main_~p~0.base_25) v_main_~p~0.offset_23)))) (= (store |v_#memory_int_113| v_main_~p~0.base_25 (store (select |v_#memory_int_113| v_main_~p~0.base_25) v_main_~p~0.offset_23 3)) |#memory_int|))) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 2)))' at error location [2023-03-31 22:52:26,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:26,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-03-31 22:52:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103460169] [2023-03-31 22:52:26,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 22:52:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 22:52:26,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1378, Unknown=2, NotChecked=76, Total=1640 [2023-03-31 22:52:26,116 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:26,715 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2023-03-31 22:52:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 22:52:26,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 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 31 [2023-03-31 22:52:26,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:26,716 INFO L225 Difference]: With dead ends: 64 [2023-03-31 22:52:26,716 INFO L226 Difference]: Without dead ends: 60 [2023-03-31 22:52:26,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=239, Invalid=1743, Unknown=2, NotChecked=86, Total=2070 [2023-03-31 22:52:26,718 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 116 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:26,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 156 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 169 Invalid, 1 Unknown, 56 Unchecked, 0.4s Time] [2023-03-31 22:52:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-03-31 22:52:26,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2023-03-31 22:52:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-03-31 22:52:26,723 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 31 [2023-03-31 22:52:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:26,724 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-03-31 22:52:26,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:26,724 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-03-31 22:52:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-03-31 22:52:26,725 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:26,725 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:26,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:26,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-31 22:52:26,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:26,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2016109663, now seen corresponding path program 1 times [2023-03-31 22:52:26,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:26,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565918089] [2023-03-31 22:52:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:27,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:27,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565918089] [2023-03-31 22:52:27,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565918089] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:27,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958133585] [2023-03-31 22:52:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:27,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:27,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:27,190 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) [2023-03-31 22:52:27,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 22:52:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:27,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjunts are in the unsatisfiable core [2023-03-31 22:52:27,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:27,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:27,401 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 [2023-03-31 22:52:27,408 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:27,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:27,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-03-31 22:52:27,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-03-31 22:52:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:27,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:27,526 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_343 (Array Int Int))) (= (select (select (store |c_#memory_int| c_main_~p~0.base v_ArrVal_343) c_main_~a~0.base) c_main_~a~0.offset) 1)) is different from false [2023-03-31 22:52:27,573 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:27,573 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 2 case distinctions, treesize of input 23 treesize of output 29 [2023-03-31 22:52:27,587 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:27,587 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 30 treesize of output 33 [2023-03-31 22:52:27,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-03-31 22:52:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-03-31 22:52:27,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958133585] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1353541274] [2023-03-31 22:52:27,667 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:27,667 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:27,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:27,667 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:27,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:27,692 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:28,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:28,012 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:29,237 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1364#(and (exists ((|v_#memory_$Pointer$.offset_104| (Array Int (Array Int Int))) (v_main_~p~0.base_34 Int) (|v_#memory_$Pointer$.base_106| (Array Int (Array Int Int))) (|v_#memory_int_132| (Array Int (Array Int Int))) (v_main_~p~0.offset_30 Int)) (and (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_106| v_main_~p~0.base_34 (store (select |v_#memory_$Pointer$.base_106| v_main_~p~0.base_34) v_main_~p~0.offset_30 (select (select |#memory_$Pointer$.base| v_main_~p~0.base_34) v_main_~p~0.offset_30)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_104| v_main_~p~0.base_34 (store (select |v_#memory_$Pointer$.offset_104| v_main_~p~0.base_34) v_main_~p~0.offset_30 (select (select |#memory_$Pointer$.offset| v_main_~p~0.base_34) v_main_~p~0.offset_30)))) (= |#memory_int| (store |v_#memory_int_132| v_main_~p~0.base_34 (store (select |v_#memory_int_132| v_main_~p~0.base_34) v_main_~p~0.offset_30 3))))) (= main_~root~0.offset 0) (= main_~a~0.offset 0) (= main_~n~0.offset 0) (= main_~root~0.base 0) (= main_~a~0.base main_~p~0.base) (not (= (select (select |#memory_int| main_~p~0.base) 0) 2)) (= |#NULL.offset| 0) (not (= (select (select |#memory_int| main_~p~0.base) 0) 3)) (not (= (select (select |#memory_int| main_~p~0.base) 0) 1)) (= main_~p~0.offset 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 22:52:29,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:29,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:29,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-03-31 22:52:29,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547076619] [2023-03-31 22:52:29,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:29,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 22:52:29,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 22:52:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1311, Unknown=2, NotChecked=74, Total=1560 [2023-03-31 22:52:29,240 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:29,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:29,755 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2023-03-31 22:52:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 22:52:29,756 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 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 31 [2023-03-31 22:52:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:29,756 INFO L225 Difference]: With dead ends: 63 [2023-03-31 22:52:29,756 INFO L226 Difference]: Without dead ends: 57 [2023-03-31 22:52:29,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=228, Invalid=1664, Unknown=4, NotChecked=84, Total=1980 [2023-03-31 22:52:29,758 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 76 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:29,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 238 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 265 Invalid, 2 Unknown, 51 Unchecked, 0.4s Time] [2023-03-31 22:52:29,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-03-31 22:52:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-03-31 22:52:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 46 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-03-31 22:52:29,764 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 31 [2023-03-31 22:52:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:29,764 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-03-31 22:52:29,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-03-31 22:52:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-03-31 22:52:29,765 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:29,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:29,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:29,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-03-31 22:52:29,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:29,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash -178063204, now seen corresponding path program 1 times [2023-03-31 22:52:29,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:29,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659922082] [2023-03-31 22:52:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:30,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:30,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659922082] [2023-03-31 22:52:30,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659922082] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:30,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176436163] [2023-03-31 22:52:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:30,290 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) [2023-03-31 22:52:30,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 22:52:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:30,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 40 conjunts are in the unsatisfiable core [2023-03-31 22:52:30,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:30,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:30,509 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:30,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:30,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-31 22:52:30,545 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 [2023-03-31 22:52:30,590 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 22:52:30,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 49 [2023-03-31 22:52:30,596 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 34 treesize of output 36 [2023-03-31 22:52:30,599 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 23 treesize of output 15 [2023-03-31 22:52:30,623 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 31 treesize of output 19 [2023-03-31 22:52:30,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-03-31 22:52:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:30,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:30,682 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 79 treesize of output 57 [2023-03-31 22:52:30,689 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~a~0.offset 4))) (and (forall ((v_ArrVal_445 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| c_main_~p~0.base v_ArrVal_445) c_main_~a~0.base) .cse0) c_main_~p~0.offset)) (forall ((v_ArrVal_446 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| c_main_~p~0.base v_ArrVal_446) c_main_~a~0.base) .cse0) c_main_~p~0.base)))) is different from false [2023-03-31 22:52:30,703 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:30,703 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 22 treesize of output 23 [2023-03-31 22:52:30,713 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:30,714 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 38 treesize of output 31 [2023-03-31 22:52:30,717 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 11 treesize of output 7 [2023-03-31 22:52:30,728 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-03-31 22:52:30,728 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 1 case distinctions, treesize of input 22 treesize of output 1 [2023-03-31 22:52:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-03-31 22:52:30,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176436163] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:30,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826894976] [2023-03-31 22:52:30,842 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:30,842 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:30,843 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:30,843 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:30,843 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:30,859 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:31,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:31,232 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:32,188 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1765#(and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 2)))' at error location [2023-03-31 22:52:32,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:32,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:32,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2023-03-31 22:52:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570750609] [2023-03-31 22:52:32,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:32,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-03-31 22:52:32,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:32,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-03-31 22:52:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1413, Unknown=1, NotChecked=76, Total=1640 [2023-03-31 22:52:32,191 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:33,154 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2023-03-31 22:52:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 22:52:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 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 33 [2023-03-31 22:52:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:33,155 INFO L225 Difference]: With dead ends: 90 [2023-03-31 22:52:33,155 INFO L226 Difference]: Without dead ends: 78 [2023-03-31 22:52:33,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=290, Invalid=2469, Unknown=1, NotChecked=102, Total=2862 [2023-03-31 22:52:33,157 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 115 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 26 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:33,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 320 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 402 Invalid, 16 Unknown, 74 Unchecked, 0.6s Time] [2023-03-31 22:52:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-03-31 22:52:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 68. [2023-03-31 22:52:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 81 transitions. [2023-03-31 22:52:33,166 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 81 transitions. Word has length 33 [2023-03-31 22:52:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:33,166 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 81 transitions. [2023-03-31 22:52:33,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2023-03-31 22:52:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-31 22:52:33,167 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:33,167 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:33,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:33,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:33,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:33,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash -463415913, now seen corresponding path program 1 times [2023-03-31 22:52:33,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:33,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325255268] [2023-03-31 22:52:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:33,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:52:33,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325255268] [2023-03-31 22:52:33,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325255268] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539655582] [2023-03-31 22:52:33,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:33,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:33,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:33,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:52:33,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 22:52:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:34,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 41 conjunts are in the unsatisfiable core [2023-03-31 22:52:34,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:34,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:34,092 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:34,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:34,111 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 [2023-03-31 22:52:34,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-31 22:52:34,151 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 22:52:34,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 49 [2023-03-31 22:52:34,156 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 23 treesize of output 15 [2023-03-31 22:52:34,158 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 26 treesize of output 28 [2023-03-31 22:52:34,190 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 31 treesize of output 19 [2023-03-31 22:52:34,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-03-31 22:52:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:34,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:34,239 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 52 treesize of output 30 [2023-03-31 22:52:34,245 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~a~0.offset 4))) (and (forall ((v_ArrVal_548 (Array Int Int))) (= c_main_~p~0.offset (select (select (store |c_#memory_$Pointer$.offset| c_main_~p~0.base v_ArrVal_548) c_main_~a~0.base) .cse0))) (forall ((v_ArrVal_546 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| c_main_~p~0.base v_ArrVal_546) c_main_~a~0.base) .cse0) c_main_~p~0.base)))) is different from false [2023-03-31 22:52:34,260 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:34,260 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 22 treesize of output 23 [2023-03-31 22:52:34,266 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:34,267 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 36 treesize of output 35 [2023-03-31 22:52:34,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-03-31 22:52:34,284 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-03-31 22:52:34,285 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 22 treesize of output 1 [2023-03-31 22:52:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-03-31 22:52:34,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539655582] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:34,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1178859364] [2023-03-31 22:52:34,385 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:34,385 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:34,386 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:34,386 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:34,386 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:34,405 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:34,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:34,806 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:35,816 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2250#(and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 2)))' at error location [2023-03-31 22:52:35,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:35,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:35,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2023-03-31 22:52:35,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845789547] [2023-03-31 22:52:35,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:35,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-31 22:52:35,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-31 22:52:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1326, Unknown=2, NotChecked=74, Total=1560 [2023-03-31 22:52:35,818 INFO L87 Difference]: Start difference. First operand 68 states and 81 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:36,525 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2023-03-31 22:52:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 22:52:36,525 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 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 35 [2023-03-31 22:52:36,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:36,526 INFO L225 Difference]: With dead ends: 84 [2023-03-31 22:52:36,526 INFO L226 Difference]: Without dead ends: 71 [2023-03-31 22:52:36,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=265, Invalid=2089, Unknown=2, NotChecked=94, Total=2450 [2023-03-31 22:52:36,527 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 187 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:36,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 173 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 234 Invalid, 0 Unknown, 69 Unchecked, 0.5s Time] [2023-03-31 22:52:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-03-31 22:52:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2023-03-31 22:52:36,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2023-03-31 22:52:36,535 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 35 [2023-03-31 22:52:36,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:36,535 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2023-03-31 22:52:36,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:36,536 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2023-03-31 22:52:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-31 22:52:36,536 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:36,536 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:36,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:36,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:36,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:36,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2053038167, now seen corresponding path program 1 times [2023-03-31 22:52:36,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:36,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220600386] [2023-03-31 22:52:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:36,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:52:37,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220600386] [2023-03-31 22:52:37,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220600386] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348832779] [2023-03-31 22:52:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:37,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:37,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:37,210 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:52:37,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 22:52:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:37,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 37 conjunts are in the unsatisfiable core [2023-03-31 22:52:37,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:37,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:37,414 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:37,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:37,437 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 13 treesize of output 9 [2023-03-31 22:52:37,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-03-31 22:52:37,487 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 22:52:37,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 61 [2023-03-31 22:52:37,493 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 44 [2023-03-31 22:52:37,496 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 29 treesize of output 19 [2023-03-31 22:52:37,517 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 39 treesize of output 21 [2023-03-31 22:52:37,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-03-31 22:52:37,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:37,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:37,566 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 52 treesize of output 30 [2023-03-31 22:52:37,572 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~a~0.offset 4))) (and (forall ((v_ArrVal_650 (Array Int Int))) (= c_main_~p~0.base (select (select (store |c_#memory_$Pointer$.base| c_main_~p~0.base v_ArrVal_650) c_main_~a~0.base) .cse0))) (forall ((v_ArrVal_652 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| c_main_~p~0.base v_ArrVal_652) c_main_~a~0.base) .cse0) c_main_~p~0.offset)))) is different from false [2023-03-31 22:52:37,596 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:37,597 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 22 treesize of output 23 [2023-03-31 22:52:37,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:37,604 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 36 treesize of output 35 [2023-03-31 22:52:37,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-03-31 22:52:37,620 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-03-31 22:52:37,621 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 22 treesize of output 1 [2023-03-31 22:52:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-03-31 22:52:37,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348832779] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:37,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [566983362] [2023-03-31 22:52:37,704 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:37,704 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:37,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:37,705 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:37,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:37,720 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:38,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:38,013 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:39,092 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2719#(and (= main_~root~0.offset 0) (= main_~a~0.offset 0) (= main_~n~0.offset 0) (= main_~root~0.base 0) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (= |#NULL.offset| 0) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 2)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 22:52:39,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:39,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:39,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2023-03-31 22:52:39,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175480363] [2023-03-31 22:52:39,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:39,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-03-31 22:52:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-03-31 22:52:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1398, Unknown=1, NotChecked=76, Total=1640 [2023-03-31 22:52:39,094 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 21 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 21 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:42,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:42,283 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2023-03-31 22:52:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 22:52:42,284 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 21 states have internal predecessors, (69), 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 35 [2023-03-31 22:52:42,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:42,284 INFO L225 Difference]: With dead ends: 79 [2023-03-31 22:52:42,284 INFO L226 Difference]: Without dead ends: 66 [2023-03-31 22:52:42,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=285, Invalid=2168, Unknown=1, NotChecked=96, Total=2550 [2023-03-31 22:52:42,286 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 167 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:42,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 193 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 251 Invalid, 0 Unknown, 61 Unchecked, 1.0s Time] [2023-03-31 22:52:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-03-31 22:52:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2023-03-31 22:52:42,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2023-03-31 22:52:42,296 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 35 [2023-03-31 22:52:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:42,297 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2023-03-31 22:52:42,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 21 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-03-31 22:52:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-03-31 22:52:42,298 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:42,298 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:42,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:42,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 22:52:42,501 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:42,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:42,501 INFO L85 PathProgramCache]: Analyzing trace with hash 763692931, now seen corresponding path program 2 times [2023-03-31 22:52:42,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:42,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011227783] [2023-03-31 22:52:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:42,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:42,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011227783] [2023-03-31 22:52:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011227783] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639812550] [2023-03-31 22:52:42,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 22:52:42,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:42,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:42,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:52:42,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-31 22:52:43,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-31 22:52:43,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 22:52:43,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 45 conjunts are in the unsatisfiable core [2023-03-31 22:52:43,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:43,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:43,403 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 [2023-03-31 22:52:43,412 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-31 22:52:43,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-31 22:52:43,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-03-31 22:52:43,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-03-31 22:52:43,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-03-31 22:52:43,532 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-03-31 22:52:43,532 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 19 treesize of output 22 [2023-03-31 22:52:43,575 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:43,575 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 31 treesize of output 23 [2023-03-31 22:52:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:43,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:43,664 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_main_~p~0.base_83 Int) (v_ArrVal_784 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| c_main_~p~0.base v_ArrVal_784))) (store .cse0 v_main_~p~0.base_83 (store (select .cse0 v_main_~p~0.base_83) c_main_~t~0.offset 3))) c_main_~a~0.base) c_main_~a~0.offset) 1))) is different from false [2023-03-31 22:52:43,674 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_main_~p~0.base_83 Int) (v_ArrVal_784 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| c_main_~p~0.base v_ArrVal_784))) (store .cse0 v_main_~p~0.base_83 (store (select .cse0 v_main_~p~0.base_83) 0 3))) c_main_~a~0.base) c_main_~a~0.offset) 1))) is different from false [2023-03-31 22:52:43,741 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:43,742 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 2 case distinctions, treesize of input 48 treesize of output 41 [2023-03-31 22:52:43,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:43,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 161 [2023-03-31 22:52:43,771 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 130 treesize of output 122 [2023-03-31 22:52:43,849 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 [2023-03-31 22:52:43,890 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 [2023-03-31 22:52:43,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:43,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 45 [2023-03-31 22:52:43,964 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 [2023-03-31 22:52:43,981 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-03-31 22:52:44,000 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 [2023-03-31 22:52:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2023-03-31 22:52:44,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639812550] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:52:44,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1962140361] [2023-03-31 22:52:44,109 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-03-31 22:52:44,110 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:52:44,110 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:52:44,110 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:52:44,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:52:44,127 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2023-03-31 22:52:44,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 22:52:44,465 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:52:45,522 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3187#(and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 2)))' at error location [2023-03-31 22:52:45,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:52:45,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:52:45,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2023-03-31 22:52:45,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333567317] [2023-03-31 22:52:45,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:52:45,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-03-31 22:52:45,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:52:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-03-31 22:52:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1399, Unknown=10, NotChecked=154, Total=1722 [2023-03-31 22:52:45,525 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:46,366 WARN L839 $PredicateComparison]: unable to prove that (and (= c_main_~p~0.offset 0) (= (select (select |c_#memory_int| c_main_~a~0.base) 0) 2) (= c_main_~a~0.offset 0) (forall ((v_main_~p~0.base_83 Int) (v_ArrVal_784 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| c_main_~p~0.base v_ArrVal_784))) (store .cse0 v_main_~p~0.base_83 (store (select .cse0 v_main_~p~0.base_83) 0 3))) c_main_~a~0.base) c_main_~a~0.offset) 1))) (= (select |c_#valid| c_main_~a~0.base) 1)) is different from false [2023-03-31 22:52:46,373 WARN L839 $PredicateComparison]: unable to prove that (and (= c_main_~p~0.offset 0) (= (select (select |c_#memory_int| c_main_~a~0.base) 0) 2) (= c_main_~a~0.offset 0) (forall ((v_main_~p~0.base_83 Int) (v_ArrVal_784 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| c_main_~p~0.base v_ArrVal_784))) (store .cse0 v_main_~p~0.base_83 (store (select .cse0 v_main_~p~0.base_83) 0 3))) c_main_~a~0.base) c_main_~a~0.offset) 1)))) is different from false [2023-03-31 22:52:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:52:46,765 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2023-03-31 22:52:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 22:52:46,766 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 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 37 [2023-03-31 22:52:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:52:46,767 INFO L225 Difference]: With dead ends: 102 [2023-03-31 22:52:46,767 INFO L226 Difference]: Without dead ends: 94 [2023-03-31 22:52:46,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=250, Invalid=2106, Unknown=12, NotChecked=388, Total=2756 [2023-03-31 22:52:46,768 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 247 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 22:52:46,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 292 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 302 Invalid, 4 Unknown, 247 Unchecked, 0.8s Time] [2023-03-31 22:52:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-03-31 22:52:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 71. [2023-03-31 22:52:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.208955223880597) internal successors, (81), 67 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2023-03-31 22:52:46,777 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 37 [2023-03-31 22:52:46,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:52:46,777 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2023-03-31 22:52:46,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:52:46,777 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2023-03-31 22:52:46,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-03-31 22:52:46,778 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:52:46,778 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:52:46,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-31 22:52:46,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:46,986 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:52:46,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:52:46,986 INFO L85 PathProgramCache]: Analyzing trace with hash -261010045, now seen corresponding path program 2 times [2023-03-31 22:52:46,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:52:46,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369157162] [2023-03-31 22:52:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:52:46,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:52:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:52:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:52:47,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:52:47,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369157162] [2023-03-31 22:52:47,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369157162] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:52:47,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392961530] [2023-03-31 22:52:47,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 22:52:47,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:52:47,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:52:47,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:52:47,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-31 22:52:48,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-31 22:52:48,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 22:52:48,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 69 conjunts are in the unsatisfiable core [2023-03-31 22:52:48,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:52:48,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 22:52:48,217 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-31 22:52:48,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-03-31 22:52:48,270 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 [2023-03-31 22:52:48,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-31 22:52:48,343 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-03-31 22:52:48,344 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 14 treesize of output 20 [2023-03-31 22:52:48,350 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 5 treesize of output 3 [2023-03-31 22:52:48,358 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 [2023-03-31 22:52:48,374 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 22:52:48,374 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 31 treesize of output 29 [2023-03-31 22:52:48,393 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-03-31 22:52:48,394 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 20 treesize of output 22 [2023-03-31 22:52:48,487 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-03-31 22:52:48,488 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 1 case distinctions, treesize of input 141 treesize of output 103 [2023-03-31 22:52:48,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-03-31 22:52:48,501 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 115 treesize of output 93 [2023-03-31 22:52:48,610 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-03-31 22:52:48,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 133 [2023-03-31 22:52:48,629 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-03-31 22:52:48,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 128 [2023-03-31 22:52:48,636 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 55 treesize of output 40 [2023-03-31 22:52:48,758 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-03-31 22:52:48,759 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 109 treesize of output 50 [2023-03-31 22:52:48,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 19 [2023-03-31 22:52:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 22:52:48,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:52:49,016 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:49,017 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 75 treesize of output 79 [2023-03-31 22:52:49,042 INFO L321 Elim1Store]: treesize reduction 4, result has 91.7 percent of original size [2023-03-31 22:52:49,043 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 5542 treesize of output 5226 [2023-03-31 22:52:49,119 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:52:49,119 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 2 case distinctions, treesize of input 413 treesize of output 409 [2023-03-31 22:52:50,125 INFO L321 Elim1Store]: treesize reduction 90, result has 67.9 percent of original size [2023-03-31 22:52:50,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 9 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 27 case distinctions, treesize of input 666 treesize of output 1915 [2023-03-31 22:52:50,815 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 8 treesize of output 6 [2023-03-31 22:52:51,019 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 8 treesize of output 6 [2023-03-31 22:52:51,149 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 8 treesize of output 6 [2023-03-31 22:52:51,312 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 8 treesize of output 6 [2023-03-31 22:52:51,397 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 8 treesize of output 6 [2023-03-31 22:52:51,773 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 8 treesize of output 6 [2023-03-31 22:52:51,978 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 8 treesize of output 6 [2023-03-31 22:52:52,200 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 8 treesize of output 6 [2023-03-31 22:52:52,280 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 8 treesize of output 6 [2023-03-31 22:52:52,388 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 8 treesize of output 6 [2023-03-31 22:52:52,650 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 8 treesize of output 6 [2023-03-31 22:52:52,759 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 8 treesize of output 6 [2023-03-31 22:52:53,099 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 8 treesize of output 6 [2023-03-31 22:52:53,186 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 8 treesize of output 6 [2023-03-31 22:52:53,276 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 8 treesize of output 6 [2023-03-31 22:52:53,526 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 8 treesize of output 6 [2023-03-31 22:52:53,616 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 8 treesize of output 6 [2023-03-31 22:52:53,661 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 8 treesize of output 6 [2023-03-31 22:52:53,721 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 8 treesize of output 6 [2023-03-31 22:52:53,890 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 8 treesize of output 6 [2023-03-31 22:52:53,951 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 8 treesize of output 6 [2023-03-31 22:52:54,094 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 8 treesize of output 6 [2023-03-31 22:52:54,256 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 8 treesize of output 6 [2023-03-31 22:52:54,410 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 8 treesize of output 6 [2023-03-31 22:52:54,555 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 8 treesize of output 6 [2023-03-31 22:52:54,601 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 8 treesize of output 6 [2023-03-31 22:52:54,834 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 8 treesize of output 6 [2023-03-31 22:52:54,926 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 8 treesize of output 6 [2023-03-31 22:52:55,214 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 8 treesize of output 6 [2023-03-31 22:52:55,284 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 8 treesize of output 6 [2023-03-31 22:52:55,473 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 8 treesize of output 6 [2023-03-31 22:52:55,788 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 8 treesize of output 6 [2023-03-31 22:52:55,953 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 8 treesize of output 6 [2023-03-31 22:52:56,014 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 8 treesize of output 6 [2023-03-31 22:52:56,128 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 8 treesize of output 6 [2023-03-31 22:52:56,212 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 8 treesize of output 6 [2023-03-31 22:52:56,262 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 8 treesize of output 6 [2023-03-31 22:52:56,362 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 8 treesize of output 6 [2023-03-31 22:52:56,378 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 8 treesize of output 6 [2023-03-31 22:52:56,537 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 8 treesize of output 6 [2023-03-31 22:52:56,700 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 8 treesize of output 6 [2023-03-31 22:52:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:58,953 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-03-31 22:52:58,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 905 [2023-03-31 22:52:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,115 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-03-31 22:52:59,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 905 [2023-03-31 22:52:59,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,407 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-03-31 22:52:59,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 905 [2023-03-31 22:52:59,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,617 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-03-31 22:52:59,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 905 [2023-03-31 22:52:59,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:52:59,861 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-03-31 22:52:59,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 905 [2023-03-31 22:53:00,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,067 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-03-31 22:53:00,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 605 [2023-03-31 22:53:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,237 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-03-31 22:53:00,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 605 [2023-03-31 22:53:00,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,368 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-03-31 22:53:00,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 605 [2023-03-31 22:53:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:00,664 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-03-31 22:53:00,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 605 [2023-03-31 22:53:02,346 INFO L321 Elim1Store]: treesize reduction 30, result has 66.7 percent of original size [2023-03-31 22:53:02,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 547 treesize of output 738 [2023-03-31 22:53:02,573 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 8 treesize of output 6 [2023-03-31 22:53:02,696 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 8 treesize of output 6 [2023-03-31 22:53:02,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:02,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:02,770 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-03-31 22:53:02,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 177 [2023-03-31 22:53:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:02,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:02,845 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-03-31 22:53:02,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 177 [2023-03-31 22:53:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:03,055 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-03-31 22:53:03,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 4 [2023-03-31 22:53:03,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:03,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 4 [2023-03-31 22:53:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:03,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 4 [2023-03-31 22:53:03,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 22:53:03,168 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-03-31 22:53:03,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 4 [2023-03-31 22:53:03,433 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 87 treesize of output 83 [2023-03-31 22:53:03,489 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-03-31 22:53:03,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 78 [2023-03-31 22:53:03,555 INFO L321 Elim1Store]: treesize reduction 25, result has 68.4 percent of original size [2023-03-31 22:53:03,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 330 treesize of output 379 [2023-03-31 22:53:03,734 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 8 treesize of output 6 [2023-03-31 22:53:03,775 INFO L321 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2023-03-31 22:53:03,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 4 [2023-03-31 22:53:03,855 INFO L321 Elim1Store]: treesize reduction 20, result has 68.3 percent of original size [2023-03-31 22:53:03,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 290 treesize of output 360 [2023-03-31 22:53:03,912 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 8 treesize of output 6 [2023-03-31 22:53:03,948 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 8 treesize of output 6 [2023-03-31 22:53:04,004 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-03-31 22:53:04,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 13 [2023-03-31 22:53:04,301 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 43 treesize of output 37 [2023-03-31 22:53:04,353 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 49 treesize of output 37 [2023-03-31 22:53:04,413 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 56 treesize of output 40 [2023-03-31 22:53:04,546 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 48 treesize of output 40 [2023-03-31 22:53:11,369 WARN L223 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 458 DAG size of output: 374 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-31 22:53:11,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,883 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 29 treesize of output 30 [2023-03-31 22:53:11,898 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,898 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 462 treesize of output 299 [2023-03-31 22:53:11,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,913 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 29 treesize of output 30 [2023-03-31 22:53:11,920 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:11,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-03-31 22:53:11,947 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 98 [2023-03-31 22:53:11,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:11,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2023-03-31 22:53:12,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,021 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 237 treesize of output 228 [2023-03-31 22:53:12,032 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,032 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 319 treesize of output 310 [2023-03-31 22:53:12,048 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,048 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 561 treesize of output 398 [2023-03-31 22:53:12,070 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 252 treesize of output 253 [2023-03-31 22:53:12,085 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 239 treesize of output 231 [2023-03-31 22:53:12,103 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,103 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 370 treesize of output 363 [2023-03-31 22:53:12,123 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 316 [2023-03-31 22:53:12,133 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 307 treesize of output 299 [2023-03-31 22:53:12,161 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 290 treesize of output 291 [2023-03-31 22:53:12,178 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 277 treesize of output 269 [2023-03-31 22:53:12,193 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:12,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 269 treesize of output 230 [2023-03-31 22:53:12,204 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 221 treesize of output 213 [2023-03-31 22:53:13,026 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,027 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 29 treesize of output 30 [2023-03-31 22:53:13,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,044 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 449 treesize of output 292 [2023-03-31 22:53:13,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,059 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 29 treesize of output 30 [2023-03-31 22:53:13,068 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,080 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,081 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 36 treesize of output 35 [2023-03-31 22:53:13,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 75 [2023-03-31 22:53:13,112 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 54 treesize of output 46 [2023-03-31 22:53:13,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 111 [2023-03-31 22:53:13,208 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,208 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 51 treesize of output 41 [2023-03-31 22:53:13,213 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,221 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 112 [2023-03-31 22:53:13,236 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2023-03-31 22:53:13,284 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,284 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 29 treesize of output 30 [2023-03-31 22:53:13,296 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,297 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 178 treesize of output 135 [2023-03-31 22:53:13,306 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,307 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 29 treesize of output 30 [2023-03-31 22:53:13,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,321 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-03-31 22:53:13,342 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2023-03-31 22:53:13,353 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2023-03-31 22:53:13,396 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,397 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 59 treesize of output 49 [2023-03-31 22:53:13,400 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,408 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,408 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 61 treesize of output 54 [2023-03-31 22:53:13,427 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2023-03-31 22:53:13,447 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,448 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 28 treesize of output 29 [2023-03-31 22:53:13,457 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,457 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 30 treesize of output 31 [2023-03-31 22:53:13,462 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,473 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,473 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 39 treesize of output 38 [2023-03-31 22:53:13,478 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,486 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,486 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 43 treesize of output 42 [2023-03-31 22:53:13,491 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2023-03-31 22:53:13,528 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2023-03-31 22:53:13,551 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,552 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 1 case distinctions, treesize of input 30 treesize of output 31 [2023-03-31 22:53:13,565 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,566 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 190 treesize of output 141 [2023-03-31 22:53:13,576 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,576 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 34 treesize of output 35 [2023-03-31 22:53:13,583 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 74 treesize of output 66 [2023-03-31 22:53:13,597 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 75 [2023-03-31 22:53:13,605 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,644 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,645 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 47 treesize of output 46 [2023-03-31 22:53:13,661 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 79 [2023-03-31 22:53:13,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,719 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 51 treesize of output 41 [2023-03-31 22:53:13,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,730 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,731 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 167 treesize of output 112 [2023-03-31 22:53:13,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2023-03-31 22:53:13,770 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,770 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 28 treesize of output 29 [2023-03-31 22:53:13,775 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,775 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 30 treesize of output 31 [2023-03-31 22:53:13,778 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,790 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,791 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 39 treesize of output 38 [2023-03-31 22:53:13,796 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2023-03-31 22:53:13,808 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,815 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,816 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 43 treesize of output 42 [2023-03-31 22:53:13,820 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2023-03-31 22:53:13,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,857 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 27 treesize of output 28 [2023-03-31 22:53:13,866 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,866 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 27 treesize of output 28 [2023-03-31 22:53:13,870 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,881 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,882 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 36 treesize of output 35 [2023-03-31 22:53:13,895 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-03-31 22:53:13,900 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,907 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,908 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 36 treesize of output 35 [2023-03-31 22:53:13,922 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 22:53:13,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-03-31 22:53:13,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,936 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 1 case distinctions, treesize of input 29 treesize of output 30 [2023-03-31 22:53:13,944 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:53:13,945 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 35 treesize of output 36