/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:52:41,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:52:41,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:52:41,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:52:41,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:52:41,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:52:41,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:52:41,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:52:41,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:52:41,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:52:41,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:52:41,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:52:41,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:52:41,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:52:41,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:52:41,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:52:41,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:52:41,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:52:41,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:52:41,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:52:41,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:52:41,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:52:41,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:52:41,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:52:41,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:52:41,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:52:41,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:52:41,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:52:41,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:52:41,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:52:41,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:52:41,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:52:41,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:52:41,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:52:41,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:52:41,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:52:41,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:52:41,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:52:41,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:52:41,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:52:41,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:52:41,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:52:41,615 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:52:41,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:52:41,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:52:41,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:52:41,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:52:41,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:52:41,617 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:52:41,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:52:41,617 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:52:41,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:52:41,617 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:52:41,618 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:52:41,618 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:52:41,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:52:41,619 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:52:41,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:52:41,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:52:41,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:52:41,620 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:52:41,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:52:41,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:52:41,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:52:41,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:52:41,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:52:41,621 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:52:41,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:52:41,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:52:41,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:52:41,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:52:41,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:52:41,850 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:52:41,851 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:52:41,852 INFO L432 ainManager$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 [2023-04-01 04:52:43,071 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:52:43,293 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:52:43,294 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2023-04-01 04:52:43,303 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e0c0acb/550218c246de43d29ab59d5db43d26b4/FLAG96d45b1f6 [2023-04-01 04:52:43,315 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e0c0acb/550218c246de43d29ab59d5db43d26b4 [2023-04-01 04:52:43,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:52:43,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:52:43,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:52:43,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:52:43,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:52:43,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7c991f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43, skipping insertion in model container [2023-04-01 04:52:43,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:52:43,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:52:43,649 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] [2023-04-01 04:52:43,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:52:43,661 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:52:43,704 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] [2023-04-01 04:52:43,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:52:43,732 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:52:43,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43 WrapperNode [2023-04-01 04:52:43,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:52:43,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:52:43,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:52:43,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:52:43,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,787 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:52:43,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:52:43,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:52:43,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:52:43,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (1/1) ... [2023-04-01 04:52:43,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:52:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:43,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 04:52:43,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 04:52:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:52:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:52:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:52:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-01 04:52:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-01 04:52:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-04-01 04:52:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:52:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:52:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-01 04:52:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-01 04:52:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-01 04:52:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-01 04:52:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-01 04:52:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-01 04:52:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-01 04:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-01 04:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-01 04:52:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-01 04:52:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-01 04:52:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-01 04:52:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-01 04:52:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 04:52:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:52:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:52:44,058 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:52:44,060 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:52:44,120 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-04-01 04:52:44,454 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:52:44,606 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:52:44,606 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-01 04:52:44,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:52:44 BoogieIcfgContainer [2023-04-01 04:52:44,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:52:44,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:52:44,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:52:44,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:52:44,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:52:43" (1/3) ... [2023-04-01 04:52:44,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ee4622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:52:44, skipping insertion in model container [2023-04-01 04:52:44,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:43" (2/3) ... [2023-04-01 04:52:44,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ee4622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:52:44, skipping insertion in model container [2023-04-01 04:52:44,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:52:44" (3/3) ... [2023-04-01 04:52:44,618 INFO L112 eAbstractionObserver]: Analyzing ICFG list_and_tree_cnstr-2.i [2023-04-01 04:52:44,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:52:44,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:52:44,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:52:44,679 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;@6d9160d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:52:44,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:52:44,682 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) [2023-04-01 04:52:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-01 04:52:44,687 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:44,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:52:44,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:44,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:44,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1546310716, now seen corresponding path program 1 times [2023-04-01 04:52:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:44,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502947245] [2023-04-01 04:52:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:44,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:44,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:52:44,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:44,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502947245] [2023-04-01 04:52:44,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502947245] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:44,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:44,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:52:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233258349] [2023-04-01 04:52:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:44,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:52:44,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:44,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:52:44,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:52:44,923 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) [2023-04-01 04:52:45,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:45,013 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2023-04-01 04:52:45,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:52:45,015 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 [2023-04-01 04:52:45,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:45,020 INFO L225 Difference]: With dead ends: 81 [2023-04-01 04:52:45,020 INFO L226 Difference]: Without dead ends: 34 [2023-04-01 04:52:45,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:52:45,027 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 [2023-04-01 04:52:45,027 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] [2023-04-01 04:52:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-04-01 04:52:45,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-04-01 04:52:45,061 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) [2023-04-01 04:52:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-04-01 04:52:45,065 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 18 [2023-04-01 04:52:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:45,067 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-04-01 04:52:45,067 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) [2023-04-01 04:52:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-04-01 04:52:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-01 04:52:45,070 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:45,070 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] [2023-04-01 04:52:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:52:45,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:45,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1523122818, now seen corresponding path program 1 times [2023-04-01 04:52:45,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:45,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973076958] [2023-04-01 04:52:45,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:45,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:52:45,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:45,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973076958] [2023-04-01 04:52:45,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973076958] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 04:52:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135127674] [2023-04-01 04:52:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:45,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 04:52:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 04:52:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:52:45,204 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) [2023-04-01 04:52:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:45,271 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2023-04-01 04:52:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 04:52:45,272 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 [2023-04-01 04:52:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:45,272 INFO L225 Difference]: With dead ends: 57 [2023-04-01 04:52:45,273 INFO L226 Difference]: Without dead ends: 38 [2023-04-01 04:52:45,273 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 [2023-04-01 04:52:45,274 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 [2023-04-01 04:52:45,275 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] [2023-04-01 04:52:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-04-01 04:52:45,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2023-04-01 04:52:45,279 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) [2023-04-01 04:52:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-04-01 04:52:45,280 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2023-04-01 04:52:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:45,280 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-04-01 04:52:45,281 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) [2023-04-01 04:52:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-04-01 04:52:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-01 04:52:45,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:45,282 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] [2023-04-01 04:52:45,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:52:45,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:45,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1855382342, now seen corresponding path program 1 times [2023-04-01 04:52:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:45,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245972954] [2023-04-01 04:52:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:45,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:45,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245972954] [2023-04-01 04:52:45,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245972954] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:45,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:45,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:52:45,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908147522] [2023-04-01 04:52:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:45,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:52:45,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:52:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:52:45,512 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) [2023-04-01 04:52:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:45,937 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2023-04-01 04:52:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 04:52:45,937 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 [2023-04-01 04:52:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:45,939 INFO L225 Difference]: With dead ends: 60 [2023-04-01 04:52:45,939 INFO L226 Difference]: Without dead ends: 56 [2023-04-01 04:52:45,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-01 04:52:45,941 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 [2023-04-01 04:52:45,941 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] [2023-04-01 04:52:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-04-01 04:52:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2023-04-01 04:52:45,947 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) [2023-04-01 04:52:45,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2023-04-01 04:52:45,948 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 27 [2023-04-01 04:52:45,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:45,948 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2023-04-01 04:52:45,948 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) [2023-04-01 04:52:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-04-01 04:52:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-01 04:52:45,949 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:45,949 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] [2023-04-01 04:52:45,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 04:52:45,950 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:45,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash 462380597, now seen corresponding path program 1 times [2023-04-01 04:52:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:45,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783063479] [2023-04-01 04:52:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:46,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783063479] [2023-04-01 04:52:46,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783063479] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:46,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:52:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076521611] [2023-04-01 04:52:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:46,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:52:46,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:52:46,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:52:46,178 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) [2023-04-01 04:52:46,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:46,638 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2023-04-01 04:52:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 04:52:46,639 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 [2023-04-01 04:52:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:46,639 INFO L225 Difference]: With dead ends: 64 [2023-04-01 04:52:46,639 INFO L226 Difference]: Without dead ends: 56 [2023-04-01 04:52:46,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-01 04:52:46,641 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:46,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 97 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 04:52:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-04-01 04:52:46,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2023-04-01 04:52:46,645 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) [2023-04-01 04:52:46,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-04-01 04:52:46,646 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 29 [2023-04-01 04:52:46,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:46,646 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-04-01 04:52:46,646 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) [2023-04-01 04:52:46,647 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-04-01 04:52:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-01 04:52:46,647 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:46,647 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] [2023-04-01 04:52:46,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 04:52:46,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:46,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash -562322379, now seen corresponding path program 1 times [2023-04-01 04:52:46,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:46,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494867503] [2023-04-01 04:52:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:46,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:46,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494867503] [2023-04-01 04:52:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494867503] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:52:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066215916] [2023-04-01 04:52:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:46,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:52:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:52:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:52:46,839 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) [2023-04-01 04:52:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:47,118 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2023-04-01 04:52:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 04:52:47,118 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 [2023-04-01 04:52:47,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:47,119 INFO L225 Difference]: With dead ends: 62 [2023-04-01 04:52:47,119 INFO L226 Difference]: Without dead ends: 51 [2023-04-01 04:52:47,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-01 04:52:47,120 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-04-01 04:52:47,121 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] [2023-04-01 04:52:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-04-01 04:52:47,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2023-04-01 04:52:47,125 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) [2023-04-01 04:52:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2023-04-01 04:52:47,125 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 29 [2023-04-01 04:52:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:47,126 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2023-04-01 04:52:47,126 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) [2023-04-01 04:52:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-04-01 04:52:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-04-01 04:52:47,126 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:47,127 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] [2023-04-01 04:52:47,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 04:52:47,127 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:47,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1415455969, now seen corresponding path program 1 times [2023-04-01 04:52:47,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:47,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139654509] [2023-04-01 04:52:47,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:47,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:47,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139654509] [2023-04-01 04:52:47,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139654509] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:47,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358237939] [2023-04-01 04:52:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:47,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:47,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:47,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:52:47,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 04:52:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:47,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-01 04:52:47,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:47,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:52:47,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:52:47,938 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:52:47,938 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 [2023-04-01 04:52:47,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-04-01 04:52:48,049 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 [2023-04-01 04:52:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:48,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:52:48,098 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 [2023-04-01 04:52:48,168 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:48,170 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 [2023-04-01 04:52:48,207 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:48,208 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 [2023-04-01 04:52:48,215 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 [2023-04-01 04:52:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-04-01 04:52:48,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358237939] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:52:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920464250] [2023-04-01 04:52:48,359 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:52:48,359 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:52:48,362 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:52:48,366 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:52:48,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:52:48,432 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:52:49,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:52:49,285 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:52:50,963 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '980#(and (<= (+ main_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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) (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$.offset_90| (Array Int (Array Int Int)))) (and (= |#memory_$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) 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) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:52:50,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:52:50,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:52:50,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-04-01 04:52:50,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972295198] [2023-04-01 04:52:50,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:52:50,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-01 04:52:50,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-01 04:52:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1377, Unknown=2, NotChecked=76, Total=1640 [2023-04-01 04:52:50,966 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) [2023-04-01 04:52:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:51,575 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2023-04-01 04:52:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 04:52:51,579 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 [2023-04-01 04:52:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:51,580 INFO L225 Difference]: With dead ends: 64 [2023-04-01 04:52:51,580 INFO L226 Difference]: Without dead ends: 60 [2023-04-01 04:52:51,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=240, Invalid=1742, Unknown=2, NotChecked=86, Total=2070 [2023-04-01 04:52:51,581 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:51,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 156 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 169 Invalid, 1 Unknown, 56 Unchecked, 0.5s Time] [2023-04-01 04:52:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-04-01 04:52:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2023-04-01 04:52:51,587 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) [2023-04-01 04:52:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-04-01 04:52:51,587 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 31 [2023-04-01 04:52:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:51,588 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-04-01 04:52:51,588 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) [2023-04-01 04:52:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-04-01 04:52:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-04-01 04:52:51,589 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:51,589 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] [2023-04-01 04:52:51,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 04:52:51,796 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 [2023-04-01 04:52:51,797 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:51,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2016109663, now seen corresponding path program 1 times [2023-04-01 04:52:51,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:51,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489114205] [2023-04-01 04:52:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:51,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:52,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:52,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489114205] [2023-04-01 04:52:52,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489114205] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:52,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885688108] [2023-04-01 04:52:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:52,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:52,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:52,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:52:52,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 04:52:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:52,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-01 04:52:52,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:52,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:52:52,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:52:52,313 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:52:52,313 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 [2023-04-01 04:52:52,375 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 [2023-04-01 04:52:52,417 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 [2023-04-01 04:52:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:52,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:52:52,442 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 [2023-04-01 04:52:52,492 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:52,493 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 [2023-04-01 04:52:52,507 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:52,508 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 [2023-04-01 04:52:52,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-04-01 04:52:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-04-01 04:52:52,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885688108] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:52:52,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [291943318] [2023-04-01 04:52:52,590 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:52:52,590 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:52:52,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:52:52,590 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:52:52,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:52:52,617 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:52:52,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:52:52,987 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:52:54,281 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_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:52:54,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:52:54,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:52:54,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-04-01 04:52:54,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169640669] [2023-04-01 04:52:54,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:52:54,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-01 04:52:54,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:54,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-01 04:52:54,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1249, Unknown=1, NotChecked=72, Total=1482 [2023-04-01 04:52:54,285 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) [2023-04-01 04:52:55,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:55,024 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2023-04-01 04:52:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 04:52:55,024 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 [2023-04-01 04:52:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:55,025 INFO L225 Difference]: With dead ends: 63 [2023-04-01 04:52:55,025 INFO L226 Difference]: Without dead ends: 57 [2023-04-01 04:52:55,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=214, Invalid=1592, Unknown=4, NotChecked=82, Total=1892 [2023-04-01 04:52:55,027 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 78 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:55,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 238 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 266 Invalid, 1 Unknown, 51 Unchecked, 0.6s Time] [2023-04-01 04:52:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-04-01 04:52:55,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-04-01 04:52:55,032 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) [2023-04-01 04:52:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-04-01 04:52:55,032 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 31 [2023-04-01 04:52:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:55,033 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-04-01 04:52:55,033 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) [2023-04-01 04:52:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-04-01 04:52:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-04-01 04:52:55,034 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:55,034 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] [2023-04-01 04:52:55,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 04:52:55,240 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 [2023-04-01 04:52:55,241 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:55,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash -178063204, now seen corresponding path program 1 times [2023-04-01 04:52:55,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371415452] [2023-04-01 04:52:55,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:55,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:55,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371415452] [2023-04-01 04:52:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371415452] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652717134] [2023-04-01 04:52:55,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:55,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:55,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:52:55,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 04:52:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:55,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 40 conjunts are in the unsatisfiable core [2023-04-01 04:52:55,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:55,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:52:55,765 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:52:55,765 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 [2023-04-01 04:52:55,796 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 [2023-04-01 04:52:55,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:52:55,840 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-04-01 04:52:55,840 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 [2023-04-01 04:52:55,846 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 [2023-04-01 04:52:55,848 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 [2023-04-01 04:52:55,870 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 [2023-04-01 04:52:55,872 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 [2023-04-01 04:52:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:55,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:52:55,924 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 [2023-04-01 04:52:55,929 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 [2023-04-01 04:52:55,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:55,941 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 [2023-04-01 04:52:55,947 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:52:55,947 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 [2023-04-01 04:52:55,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:52:55,963 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-01 04:52:55,964 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 [2023-04-01 04:52:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-04-01 04:52:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652717134] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:52:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1510992557] [2023-04-01 04:52:56,069 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:52:56,069 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:52:56,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:52:56,070 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:52:56,070 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:52:56,093 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:52:56,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:52:56,561 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:52:57,733 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1764#(and (<= (+ main_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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)) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:52:57,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:52:57,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:52:57,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2023-04-01 04:52:57,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773080638] [2023-04-01 04:52:57,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:52:57,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-01 04:52:57,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:57,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-01 04:52:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1400, Unknown=2, NotChecked=76, Total=1640 [2023-04-01 04:52:57,737 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) [2023-04-01 04:52:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:58,849 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2023-04-01 04:52:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 04:52:58,849 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 [2023-04-01 04:52:58,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:58,850 INFO L225 Difference]: With dead ends: 90 [2023-04-01 04:52:58,850 INFO L226 Difference]: Without dead ends: 78 [2023-04-01 04:52:58,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=296, Invalid=2462, Unknown=2, NotChecked=102, Total=2862 [2023-04-01 04:52:58,852 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 76 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 21 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:58,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 316 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 398 Invalid, 23 Unknown, 74 Unchecked, 0.8s Time] [2023-04-01 04:52:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-04-01 04:52:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 68. [2023-04-01 04:52:58,859 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) [2023-04-01 04:52:58,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 81 transitions. [2023-04-01 04:52:58,859 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 81 transitions. Word has length 33 [2023-04-01 04:52:58,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:58,860 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 81 transitions. [2023-04-01 04:52:58,860 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) [2023-04-01 04:52:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2023-04-01 04:52:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 04:52:58,861 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:58,861 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] [2023-04-01 04:52:58,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 04:52:59,068 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 [2023-04-01 04:52:59,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:59,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:59,069 INFO L85 PathProgramCache]: Analyzing trace with hash -463415913, now seen corresponding path program 1 times [2023-04-01 04:52:59,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:59,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284371162] [2023-04-01 04:52:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:59,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:52:59,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:59,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284371162] [2023-04-01 04:52:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284371162] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:59,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488017193] [2023-04-01 04:52:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:59,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:59,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:59,660 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) [2023-04-01 04:52:59,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 04:52:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:59,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 41 conjunts are in the unsatisfiable core [2023-04-01 04:52:59,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:59,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:52:59,878 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:52:59,879 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 [2023-04-01 04:52:59,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:52:59,902 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 [2023-04-01 04:52:59,944 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-04-01 04:52:59,944 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 [2023-04-01 04:52:59,949 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 [2023-04-01 04:52:59,952 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 [2023-04-01 04:52:59,988 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 [2023-04-01 04:52:59,991 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 [2023-04-01 04:52:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:52:59,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:53:00,047 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 [2023-04-01 04:53:00,090 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:00,090 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 [2023-04-01 04:53:00,097 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:00,097 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 [2023-04-01 04:53:00,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-01 04:53:00,115 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-01 04:53:00,115 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 [2023-04-01 04:53:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:53:00,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488017193] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:53:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2126793786] [2023-04-01 04:53:00,221 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:53:00,221 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:53:00,221 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:53:00,221 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:53:00,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:53:00,235 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:53:00,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:53:00,681 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:53:01,798 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2249#(and (<= (+ main_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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)) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:53:01,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:53:01,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:53:01,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2023-04-01 04:53:01,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261163892] [2023-04-01 04:53:01,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:53:01,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-01 04:53:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:53:01,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-01 04:53:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1456, Unknown=3, NotChecked=0, Total=1640 [2023-04-01 04:53:01,800 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) [2023-04-01 04:53:02,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:53:02,494 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2023-04-01 04:53:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 04:53:02,496 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 [2023-04-01 04:53:02,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:53:02,497 INFO L225 Difference]: With dead ends: 84 [2023-04-01 04:53:02,497 INFO L226 Difference]: Without dead ends: 71 [2023-04-01 04:53:02,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=291, Invalid=2256, Unknown=3, NotChecked=0, Total=2550 [2023-04-01 04:53:02,498 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 134 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 04:53:02,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 204 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 04:53:02,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-04-01 04:53:02,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2023-04-01 04:53:02,504 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) [2023-04-01 04:53:02,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2023-04-01 04:53:02,510 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 35 [2023-04-01 04:53:02,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:53:02,510 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2023-04-01 04:53:02,511 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) [2023-04-01 04:53:02,511 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2023-04-01 04:53:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 04:53:02,511 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:53:02,511 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] [2023-04-01 04:53:02,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 04:53:02,722 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 [2023-04-01 04:53:02,723 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:53:02,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:53:02,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2053038167, now seen corresponding path program 1 times [2023-04-01 04:53:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:53:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063511569] [2023-04-01 04:53:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:02,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:53:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:53:03,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:53:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063511569] [2023-04-01 04:53:03,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063511569] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:53:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456864634] [2023-04-01 04:53:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:03,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:53:03,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:53:03,187 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) [2023-04-01 04:53:03,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 04:53:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:03,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 37 conjunts are in the unsatisfiable core [2023-04-01 04:53:03,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:53:03,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:53:03,387 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:53:03,388 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 [2023-04-01 04:53:03,410 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 [2023-04-01 04:53:03,417 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 [2023-04-01 04:53:03,460 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-04-01 04:53:03,461 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 [2023-04-01 04:53:03,466 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 [2023-04-01 04:53:03,469 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 [2023-04-01 04:53:03,490 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 [2023-04-01 04:53:03,492 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 [2023-04-01 04:53:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:53:03,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:53:03,540 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 [2023-04-01 04:53:03,546 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 [2023-04-01 04:53:03,566 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:03,566 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 [2023-04-01 04:53:03,572 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:03,572 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 [2023-04-01 04:53:03,574 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 [2023-04-01 04:53:03,586 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-01 04:53:03,587 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 [2023-04-01 04:53:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-04-01 04:53:03,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456864634] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:53:03,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2137983053] [2023-04-01 04:53:03,658 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:53:03,658 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:53:03,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:53:03,658 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:53:03,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:53:03,670 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:53:03,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:53:03,997 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:53:05,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2718#(and (<= (+ main_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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)) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:53:05,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:53:05,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:53:05,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2023-04-01 04:53:05,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781699511] [2023-04-01 04:53:05,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:53:05,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-01 04:53:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:53:05,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-01 04:53:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1327, Unknown=1, NotChecked=74, Total=1560 [2023-04-01 04:53:05,035 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) [2023-04-01 04:53:07,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:53:07,808 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2023-04-01 04:53:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 04:53:07,809 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 [2023-04-01 04:53:07,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:53:07,809 INFO L225 Difference]: With dead ends: 79 [2023-04-01 04:53:07,809 INFO L226 Difference]: Without dead ends: 66 [2023-04-01 04:53:07,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=278, Invalid=2077, Unknown=1, NotChecked=94, Total=2450 [2023-04-01 04:53:07,811 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 179 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 04:53:07,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 155 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 201 Invalid, 0 Unknown, 61 Unchecked, 0.6s Time] [2023-04-01 04:53:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-04-01 04:53:07,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2023-04-01 04:53:07,817 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) [2023-04-01 04:53:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2023-04-01 04:53:07,817 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 35 [2023-04-01 04:53:07,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:53:07,817 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2023-04-01 04:53:07,818 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) [2023-04-01 04:53:07,818 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-04-01 04:53:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-04-01 04:53:07,819 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:53:07,819 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] [2023-04-01 04:53:07,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-01 04:53:08,025 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 [2023-04-01 04:53:08,026 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:53:08,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:53:08,026 INFO L85 PathProgramCache]: Analyzing trace with hash 763692931, now seen corresponding path program 2 times [2023-04-01 04:53:08,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:53:08,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773081584] [2023-04-01 04:53:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:53:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:53:08,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:53:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773081584] [2023-04-01 04:53:08,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773081584] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:53:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673156580] [2023-04-01 04:53:08,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-01 04:53:08,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:53:08,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:53:08,470 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) [2023-04-01 04:53:08,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-01 04:53:08,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-04-01 04:53:08,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-01 04:53:08,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 45 conjunts are in the unsatisfiable core [2023-04-01 04:53:08,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:53:08,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:53:08,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:53:08,885 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-01 04:53:08,885 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 [2023-04-01 04:53:08,907 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 [2023-04-01 04:53:08,924 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 [2023-04-01 04:53:08,956 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 [2023-04-01 04:53:09,002 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-04-01 04:53:09,002 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 [2023-04-01 04:53:09,040 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:09,041 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 [2023-04-01 04:53:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:53:09,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:53:09,102 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 [2023-04-01 04:53:09,110 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 [2023-04-01 04:53:09,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:09,164 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 [2023-04-01 04:53:09,180 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:09,181 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 [2023-04-01 04:53:09,188 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 [2023-04-01 04:53:09,301 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 6 treesize of output 4 [2023-04-01 04:53:09,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-04-01 04:53:09,355 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:09,356 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 [2023-04-01 04:53:09,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-04-01 04:53:09,433 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-04-01 04:53:09,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-04-01 04:53:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2023-04-01 04:53:09,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673156580] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:53:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [817979248] [2023-04-01 04:53:09,547 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-04-01 04:53:09,547 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:53:09,548 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:53:09,548 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:53:09,548 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:53:09,562 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-01 04:53:09,951 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:53:09,953 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:53:11,068 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3185#(and (<= (+ main_~a~0.base 1) |#StackHeapBarrier|) (<= 1 |#StackHeapBarrier|) (= 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)) (<= (+ main_~n~0.base 1) |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-04-01 04:53:11,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 04:53:11,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:53:11,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2023-04-01 04:53:11,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905715802] [2023-04-01 04:53:11,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 04:53:11,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-01 04:53:11,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:53:11,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-01 04:53:11,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1387, Unknown=9, NotChecked=154, Total=1722 [2023-04-01 04:53:11,071 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) [2023-04-01 04:53:11,549 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 [2023-04-01 04:53:11,556 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 [2023-04-01 04:53:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:53:11,897 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2023-04-01 04:53:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-01 04:53:11,897 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 [2023-04-01 04:53:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:53:11,899 INFO L225 Difference]: With dead ends: 102 [2023-04-01 04:53:11,899 INFO L226 Difference]: Without dead ends: 94 [2023-04-01 04:53:11,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=263, Invalid=2094, Unknown=11, NotChecked=388, Total=2756 [2023-04-01 04:53:11,901 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 68 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 26 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 247 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 04:53:11,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 278 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 305 Invalid, 4 Unknown, 247 Unchecked, 0.4s Time] [2023-04-01 04:53:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-04-01 04:53:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 71. [2023-04-01 04:53:11,915 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) [2023-04-01 04:53:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2023-04-01 04:53:11,915 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 37 [2023-04-01 04:53:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:53:11,916 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2023-04-01 04:53:11,916 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) [2023-04-01 04:53:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2023-04-01 04:53:11,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-04-01 04:53:11,917 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:53:11,917 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] [2023-04-01 04:53:11,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-01 04:53:12,121 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 [2023-04-01 04:53:12,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:53:12,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:53:12,121 INFO L85 PathProgramCache]: Analyzing trace with hash -261010045, now seen corresponding path program 2 times [2023-04-01 04:53:12,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:53:12,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540842150] [2023-04-01 04:53:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:12,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:53:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:53:12,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:53:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540842150] [2023-04-01 04:53:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540842150] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:53:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098698436] [2023-04-01 04:53:12,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-01 04:53:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:53:12,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:53:12,949 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) [2023-04-01 04:53:12,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-01 04:53:13,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-04-01 04:53:13,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-01 04:53:13,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 69 conjunts are in the unsatisfiable core [2023-04-01 04:53:13,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:53:13,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-01 04:53:13,287 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-01 04:53:13,287 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 [2023-04-01 04:53:13,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:53:13,333 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 [2023-04-01 04:53:13,391 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-01 04:53:13,392 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 [2023-04-01 04:53:13,398 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 [2023-04-01 04:53:13,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-01 04:53:13,417 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-04-01 04:53:13,417 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 [2023-04-01 04:53:13,432 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-04-01 04:53:13,432 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 [2023-04-01 04:53:13,514 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-04-01 04:53:13,515 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 [2023-04-01 04:53:13,521 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 [2023-04-01 04:53:13,526 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 [2023-04-01 04:53:13,637 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-04-01 04:53:13,637 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 [2023-04-01 04:53:13,682 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-04-01 04:53:13,682 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 [2023-04-01 04:53:13,691 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 [2023-04-01 04:53:13,824 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-04-01 04:53:13,824 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 [2023-04-01 04:53:13,828 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 [2023-04-01 04:53:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 04:53:13,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:53:14,048 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:14,049 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 79 [2023-04-01 04:53:14,074 INFO L321 Elim1Store]: treesize reduction 4, result has 91.7 percent of original size [2023-04-01 04:53:14,075 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 [2023-04-01 04:53:14,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:14,146 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 [2023-04-01 04:53:15,634 INFO L321 Elim1Store]: treesize reduction 90, result has 67.9 percent of original size [2023-04-01 04:53:15,635 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 [2023-04-01 04:53:16,326 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 [2023-04-01 04:53:16,529 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 [2023-04-01 04:53:16,634 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 [2023-04-01 04:53:16,761 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 [2023-04-01 04:53:16,821 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 [2023-04-01 04:53:17,168 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 [2023-04-01 04:53:17,373 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 [2023-04-01 04:53:17,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:17,647 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 [2023-04-01 04:53:17,718 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 [2023-04-01 04:53:17,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:17,942 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 [2023-04-01 04:53:18,151 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 [2023-04-01 04:53:18,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:18,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:18,385 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 [2023-04-01 04:53:18,547 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 [2023-04-01 04:53:18,619 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 [2023-04-01 04:53:18,706 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 [2023-04-01 04:53:18,922 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 [2023-04-01 04:53:19,017 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 [2023-04-01 04:53:19,218 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 [2023-04-01 04:53:19,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:19,647 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 [2023-04-01 04:53:19,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:19,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:20,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:20,320 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 [2023-04-01 04:53:20,487 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 [2023-04-01 04:53:20,527 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 [2023-04-01 04:53:20,641 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 [2023-04-01 04:53:20,863 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 [2023-04-01 04:53:20,977 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 [2023-04-01 04:53:21,077 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 [2023-04-01 04:53:21,232 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 [2023-04-01 04:53:21,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-04-01 04:53:21,429 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 [2023-04-01 04:53:21,585 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 [2023-04-01 04:53:21,608 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 [2023-04-01 04:53:21,798 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 [2023-04-01 04:53:22,018 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 [2023-04-01 04:53:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,681 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-04-01 04:53:23,681 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 [2023-04-01 04:53:23,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:23,811 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-04-01 04:53:23,811 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 [2023-04-01 04:53:24,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,027 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-04-01 04:53:24,028 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 [2023-04-01 04:53:24,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,227 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-04-01 04:53:24,228 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 [2023-04-01 04:53:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,478 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-04-01 04:53:24,479 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 [2023-04-01 04:53:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,690 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-04-01 04:53:24,690 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 [2023-04-01 04:53:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,869 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-04-01 04:53:24,869 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 [2023-04-01 04:53:24,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,002 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-04-01 04:53:25,003 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 [2023-04-01 04:53:25,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:25,291 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-04-01 04:53:25,291 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 [2023-04-01 04:53:26,721 INFO L321 Elim1Store]: treesize reduction 30, result has 66.7 percent of original size [2023-04-01 04:53:26,722 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 [2023-04-01 04:53:26,934 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 [2023-04-01 04:53:27,042 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 [2023-04-01 04:53:27,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,126 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-04-01 04:53:27,127 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 [2023-04-01 04:53:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,189 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-04-01 04:53:27,189 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 [2023-04-01 04:53:27,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,350 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-01 04:53:27,350 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 [2023-04-01 04:53:27,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,372 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 [2023-04-01 04:53:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,386 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 [2023-04-01 04:53:27,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:27,477 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-01 04:53:27,477 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 [2023-04-01 04:53:27,764 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 [2023-04-01 04:53:27,807 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-04-01 04:53:27,807 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 [2023-04-01 04:53:27,877 INFO L321 Elim1Store]: treesize reduction 25, result has 68.4 percent of original size [2023-04-01 04:53:27,878 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 [2023-04-01 04:53:28,018 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 [2023-04-01 04:53:28,065 INFO L321 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2023-04-01 04:53:28,065 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 [2023-04-01 04:53:28,131 INFO L321 Elim1Store]: treesize reduction 20, result has 68.3 percent of original size [2023-04-01 04:53:28,131 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 [2023-04-01 04:53:28,182 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 [2023-04-01 04:53:28,213 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 [2023-04-01 04:53:28,277 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-04-01 04:53:28,277 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 [2023-04-01 04:53:28,493 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 [2023-04-01 04:53:28,525 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 [2023-04-01 04:53:28,564 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 [2023-04-01 04:53:28,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2023-04-01 04:53:34,921 WARN L223 SmtUtils]: Spent 5.65s 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) [2023-04-01 04:53:35,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,437 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 [2023-04-01 04:53:35,452 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,453 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 [2023-04-01 04:53:35,466 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,467 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 [2023-04-01 04:53:35,473 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:35,483 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,484 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 [2023-04-01 04:53:35,502 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,503 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 [2023-04-01 04:53:35,517 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,517 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 [2023-04-01 04:53:35,571 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,572 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 [2023-04-01 04:53:35,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,583 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 [2023-04-01 04:53:35,597 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,598 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 [2023-04-01 04:53:35,619 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,620 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 [2023-04-01 04:53:35,632 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 [2023-04-01 04:53:35,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,650 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 [2023-04-01 04:53:35,672 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,673 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 [2023-04-01 04:53:35,683 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 [2023-04-01 04:53:35,699 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,700 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 [2023-04-01 04:53:35,716 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 [2023-04-01 04:53:35,732 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,733 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 [2023-04-01 04:53:35,743 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 [2023-04-01 04:53:36,512 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,513 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 [2023-04-01 04:53:36,544 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,544 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 [2023-04-01 04:53:36,557 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,557 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 [2023-04-01 04:53:36,564 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,574 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,574 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 [2023-04-01 04:53:36,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,590 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 [2023-04-01 04:53:36,596 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 [2023-04-01 04:53:36,607 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,607 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 [2023-04-01 04:53:36,672 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,673 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 [2023-04-01 04:53:36,676 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,682 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 [2023-04-01 04:53:36,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,692 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 [2023-04-01 04:53:36,721 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,722 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 [2023-04-01 04:53:36,730 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,730 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 [2023-04-01 04:53:36,736 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,736 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 [2023-04-01 04:53:36,739 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,746 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 [2023-04-01 04:53:36,760 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,760 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 [2023-04-01 04:53:36,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,768 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 [2023-04-01 04:53:36,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,799 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 [2023-04-01 04:53:36,801 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,807 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 [2023-04-01 04:53:36,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,818 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 [2023-04-01 04:53:36,830 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,831 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 [2023-04-01 04:53:36,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,843 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 [2023-04-01 04:53:36,847 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,857 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 [2023-04-01 04:53:36,862 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,869 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,869 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 [2023-04-01 04:53:36,873 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,874 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 [2023-04-01 04:53:36,897 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,898 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 [2023-04-01 04:53:36,912 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,912 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 [2023-04-01 04:53:36,921 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,921 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 [2023-04-01 04:53:36,927 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,928 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 [2023-04-01 04:53:36,932 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 [2023-04-01 04:53:36,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 75 [2023-04-01 04:53:36,947 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:36,954 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,954 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 [2023-04-01 04:53:36,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:36,964 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 [2023-04-01 04:53:37,013 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,013 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 [2023-04-01 04:53:37,016 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,023 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,023 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 [2023-04-01 04:53:37,032 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,032 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 [2023-04-01 04:53:37,058 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,058 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 [2023-04-01 04:53:37,063 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,063 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 [2023-04-01 04:53:37,066 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,083 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,083 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 [2023-04-01 04:53:37,087 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,087 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 [2023-04-01 04:53:37,095 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,107 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,107 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 [2023-04-01 04:53:37,110 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,111 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 [2023-04-01 04:53:37,144 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,145 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 [2023-04-01 04:53:37,152 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,152 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 [2023-04-01 04:53:37,155 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,165 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 [2023-04-01 04:53:37,176 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,176 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 [2023-04-01 04:53:37,180 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,187 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,188 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 [2023-04-01 04:53:37,200 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,201 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 [2023-04-01 04:53:37,211 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,211 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 [2023-04-01 04:53:37,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,223 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 [2023-04-01 04:53:37,235 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,236 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 254 treesize of output 193 [2023-04-01 04:53:37,243 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,253 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 [2023-04-01 04:53:37,274 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,275 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 38 treesize of output 38 [2023-04-01 04:53:37,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,300 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 79 treesize of output 71 [2023-04-01 04:53:37,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-04-01 04:53:37,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,362 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 [2023-04-01 04:53:37,364 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,371 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,372 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 [2023-04-01 04:53:37,384 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,386 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 19 [2023-04-01 04:53:37,395 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,395 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 [2023-04-01 04:53:37,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,400 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 [2023-04-01 04:53:37,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,413 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,413 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 [2023-04-01 04:53:37,418 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,424 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,424 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 [2023-04-01 04:53:37,435 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,435 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 [2023-04-01 04:53:37,441 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,442 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 [2023-04-01 04:53:37,457 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,458 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 [2023-04-01 04:53:37,460 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,467 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,467 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 61 treesize of output 54 [2023-04-01 04:53:37,473 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,473 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 40 treesize of output 32 [2023-04-01 04:53:37,495 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,495 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 [2023-04-01 04:53:37,503 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,503 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 46 treesize of output 47 [2023-04-01 04:53:37,515 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,515 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 278 treesize of output 211 [2023-04-01 04:53:37,526 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,537 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,537 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 47 treesize of output 46 [2023-04-01 04:53:37,550 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,550 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 48 treesize of output 36 [2023-04-01 04:53:37,565 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,565 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 31 treesize of output 31 [2023-04-01 04:53:37,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,652 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 [2023-04-01 04:53:37,661 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,661 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 [2023-04-01 04:53:37,673 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,673 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 213 treesize of output 140 [2023-04-01 04:53:37,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2023-04-01 04:53:37,686 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,695 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,695 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 [2023-04-01 04:53:37,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,707 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 83 treesize of output 67 [2023-04-01 04:53:37,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,718 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 46 treesize of output 46 [2023-04-01 04:53:37,786 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,786 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 [2023-04-01 04:53:37,797 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,797 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 [2023-04-01 04:53:37,809 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,810 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 226 treesize of output 147 [2023-04-01 04:53:37,816 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:37,826 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,827 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 [2023-04-01 04:53:37,850 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,851 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 33 [2023-04-01 04:53:37,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:37,864 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