./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array21_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array21_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1a738dced8b73ebc8edf3e480fddcd32bb19127a8255980e93fab5e96705ab3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 21:45:49,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 21:45:49,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 21:45:49,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 21:45:49,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 21:45:49,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 21:45:49,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 21:45:49,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 21:45:49,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 21:45:49,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 21:45:49,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 21:45:49,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 21:45:49,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 21:45:49,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 21:45:49,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 21:45:49,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 21:45:49,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 21:45:49,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 21:45:49,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 21:45:49,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 21:45:49,873 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 21:45:49,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 21:45:49,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 21:45:49,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 21:45:49,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 21:45:49,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 21:45:49,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 21:45:49,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 21:45:49,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 21:45:49,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 21:45:49,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 21:45:49,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 21:45:49,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 21:45:49,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 21:45:49,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 21:45:49,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 21:45:49,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 21:45:49,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 21:45:49,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 21:45:49,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 21:45:49,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 21:45:49,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 21:45:49,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 21:45:49,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 21:45:49,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 21:45:49,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 21:45:49,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 21:45:49,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 21:45:49,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 21:45:49,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 21:45:49,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 21:45:49,905 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 21:45:49,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 21:45:49,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 21:45:49,907 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 21:45:49,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 21:45:49,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 21:45:49,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 21:45:49,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 21:45:49,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 21:45:49,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 21:45:49,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:45:49,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 21:45:49,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 21:45:49,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 21:45:49,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 21:45:49,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 21:45:49,909 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 21:45:49,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 21:45:49,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 21:45:49,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a738dced8b73ebc8edf3e480fddcd32bb19127a8255980e93fab5e96705ab3 [2022-07-20 21:45:50,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 21:45:50,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 21:45:50,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 21:45:50,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 21:45:50,138 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 21:45:50,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array21_pattern.c [2022-07-20 21:45:50,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b164cd8e/9ad4b4e0a4d04373b4424ce9cee14d9a/FLAGaeace93eb [2022-07-20 21:45:50,544 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 21:45:50,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array21_pattern.c [2022-07-20 21:45:50,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b164cd8e/9ad4b4e0a4d04373b4424ce9cee14d9a/FLAGaeace93eb [2022-07-20 21:45:50,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b164cd8e/9ad4b4e0a4d04373b4424ce9cee14d9a [2022-07-20 21:45:50,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 21:45:50,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 21:45:50,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 21:45:50,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 21:45:50,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 21:45:50,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32621c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50, skipping insertion in model container [2022-07-20 21:45:50,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 21:45:50,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 21:45:50,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array21_pattern.c[1340,1353] [2022-07-20 21:45:50,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:45:50,719 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 21:45:50,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array21_pattern.c[1340,1353] [2022-07-20 21:45:50,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:45:50,742 INFO L208 MainTranslator]: Completed translation [2022-07-20 21:45:50,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50 WrapperNode [2022-07-20 21:45:50,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 21:45:50,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 21:45:50,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 21:45:50,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 21:45:50,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,801 INFO L137 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2022-07-20 21:45:50,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 21:45:50,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 21:45:50,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 21:45:50,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 21:45:50,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 21:45:50,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 21:45:50,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 21:45:50,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 21:45:50,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (1/1) ... [2022-07-20 21:45:50,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:45:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:50,881 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) [2022-07-20 21:45:50,899 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 [2022-07-20 21:45:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2022-07-20 21:45:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2022-07-20 21:45:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 21:45:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 21:45:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 21:45:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 21:45:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 21:45:50,966 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 21:45:50,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 21:45:51,103 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 21:45:51,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 21:45:51,115 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-20 21:45:51,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:45:51 BoogieIcfgContainer [2022-07-20 21:45:51,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 21:45:51,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 21:45:51,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 21:45:51,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 21:45:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:45:50" (1/3) ... [2022-07-20 21:45:51,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddf42cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:45:51, skipping insertion in model container [2022-07-20 21:45:51,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:45:50" (2/3) ... [2022-07-20 21:45:51,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddf42cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:45:51, skipping insertion in model container [2022-07-20 21:45:51,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:45:51" (3/3) ... [2022-07-20 21:45:51,143 INFO L111 eAbstractionObserver]: Analyzing ICFG array21_pattern.c [2022-07-20 21:45:51,156 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 21:45:51,156 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 21:45:51,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 21:45:51,203 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@63ed2ee, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28fb729 [2022-07-20 21:45:51,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 21:45:51,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-20 21:45:51,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:51,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:45:51,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2136211159, now seen corresponding path program 1 times [2022-07-20 21:45:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:51,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681413024] [2022-07-20 21:45:51,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:51,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:45:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:45:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:45:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:45:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:45:51,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681413024] [2022-07-20 21:45:51,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681413024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:45:51,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:45:51,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 21:45:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246827204] [2022-07-20 21:45:51,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:45:51,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 21:45:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:45:51,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 21:45:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:45:51,366 INFO L87 Difference]: Start difference. First operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:45:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:45:51,391 INFO L93 Difference]: Finished difference Result 77 states and 115 transitions. [2022-07-20 21:45:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 21:45:51,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-20 21:45:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:45:51,398 INFO L225 Difference]: With dead ends: 77 [2022-07-20 21:45:51,398 INFO L226 Difference]: Without dead ends: 36 [2022-07-20 21:45:51,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:45:51,405 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:45:51,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:45:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-20 21:45:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-20 21:45:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2022-07-20 21:45:51,443 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 15 [2022-07-20 21:45:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:45:51,443 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2022-07-20 21:45:51,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:45:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-07-20 21:45:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-20 21:45:51,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:51,446 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:45:51,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 21:45:51,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -699940082, now seen corresponding path program 1 times [2022-07-20 21:45:51,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:51,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822050625] [2022-07-20 21:45:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:51,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:45:51,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836910598] [2022-07-20 21:45:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:51,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:51,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:51,504 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) [2022-07-20 21:45:51,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 21:45:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:45:51,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 21:45:51,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:45:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:45:51,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:45:51,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:45:51,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822050625] [2022-07-20 21:45:51,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:45:51,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836910598] [2022-07-20 21:45:51,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836910598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:45:51,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:45:51,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 21:45:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253141998] [2022-07-20 21:45:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:45:51,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 21:45:51,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:45:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 21:45:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 21:45:51,704 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:45:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:45:51,848 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-07-20 21:45:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 21:45:51,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-07-20 21:45:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:45:51,852 INFO L225 Difference]: With dead ends: 76 [2022-07-20 21:45:51,853 INFO L226 Difference]: Without dead ends: 48 [2022-07-20 21:45:51,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-07-20 21:45:51,855 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:45:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 92 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:45:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-07-20 21:45:51,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-07-20 21:45:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-07-20 21:45:51,867 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 35 [2022-07-20 21:45:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:45:51,867 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-07-20 21:45:51,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:45:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-07-20 21:45:51,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 21:45:51,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:51,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:45:51,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 21:45:52,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:52,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:52,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:52,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1308831759, now seen corresponding path program 1 times [2022-07-20 21:45:52,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:52,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191721180] [2022-07-20 21:45:52,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:52,085 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:45:52,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170471613] [2022-07-20 21:45:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:52,093 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) [2022-07-20 21:45:52,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 21:45:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:45:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:45:52,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:45:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-20 21:45:52,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:45:52,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:45:52,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191721180] [2022-07-20 21:45:52,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:45:52,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170471613] [2022-07-20 21:45:52,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170471613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:45:52,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:45:52,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 21:45:52,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318439638] [2022-07-20 21:45:52,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:45:52,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 21:45:52,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:45:52,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 21:45:52,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 21:45:52,188 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:45:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:45:52,241 INFO L93 Difference]: Finished difference Result 79 states and 99 transitions. [2022-07-20 21:45:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 21:45:52,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-07-20 21:45:52,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:45:52,242 INFO L225 Difference]: With dead ends: 79 [2022-07-20 21:45:52,243 INFO L226 Difference]: Without dead ends: 46 [2022-07-20 21:45:52,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:45:52,246 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:45:52,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 76 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:45:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-20 21:45:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2022-07-20 21:45:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-07-20 21:45:52,257 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 41 [2022-07-20 21:45:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:45:52,258 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-07-20 21:45:52,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:45:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-07-20 21:45:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-20 21:45:52,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:52,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:45:52,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 21:45:52,467 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,SelfDestructingSolverStorable2 [2022-07-20 21:45:52,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1300942485, now seen corresponding path program 1 times [2022-07-20 21:45:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305968980] [2022-07-20 21:45:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:52,478 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:45:52,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012562520] [2022-07-20 21:45:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:52,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:52,484 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) [2022-07-20 21:45:52,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 21:45:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:45:52,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-20 21:45:52,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:45:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-20 21:45:52,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:45:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 21:45:52,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:45:52,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305968980] [2022-07-20 21:45:52,714 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:45:52,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012562520] [2022-07-20 21:45:52,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012562520] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:45:52,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:45:52,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-20 21:45:52,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981320880] [2022-07-20 21:45:52,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:45:52,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 21:45:52,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:45:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 21:45:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-20 21:45:52,716 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 21:45:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:45:52,913 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2022-07-20 21:45:52,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 21:45:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-07-20 21:45:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:45:52,915 INFO L225 Difference]: With dead ends: 85 [2022-07-20 21:45:52,915 INFO L226 Difference]: Without dead ends: 50 [2022-07-20 21:45:52,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2022-07-20 21:45:52,916 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 106 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:45:52,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 132 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:45:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-20 21:45:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2022-07-20 21:45:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2022-07-20 21:45:52,921 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 45 [2022-07-20 21:45:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:45:52,921 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2022-07-20 21:45:52,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 21:45:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-07-20 21:45:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 21:45:52,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:52,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-07-20 21:45:52,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 21:45:53,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:53,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:53,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:53,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1544610617, now seen corresponding path program 2 times [2022-07-20 21:45:53,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:53,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510640911] [2022-07-20 21:45:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:53,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:53,153 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:45:53,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809605946] [2022-07-20 21:45:53,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:45:53,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:53,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:53,155 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) [2022-07-20 21:45:53,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 21:45:53,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:45:53,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:45:53,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 21:45:53,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:45:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-20 21:45:53,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:45:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 21:45:53,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:45:53,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510640911] [2022-07-20 21:45:53,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:45:53,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809605946] [2022-07-20 21:45:53,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809605946] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:45:53,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:45:53,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 21:45:53,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158563277] [2022-07-20 21:45:53,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:45:53,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 21:45:53,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:45:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 21:45:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-20 21:45:53,324 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:45:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:45:53,458 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2022-07-20 21:45:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 21:45:53,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2022-07-20 21:45:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:45:53,461 INFO L225 Difference]: With dead ends: 106 [2022-07-20 21:45:53,462 INFO L226 Difference]: Without dead ends: 74 [2022-07-20 21:45:53,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-07-20 21:45:53,463 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 48 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:45:53,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 156 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:45:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-20 21:45:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2022-07-20 21:45:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:45:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2022-07-20 21:45:53,478 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 49 [2022-07-20 21:45:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:45:53,478 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2022-07-20 21:45:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:45:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2022-07-20 21:45:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 21:45:53,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:45:53,480 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 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] [2022-07-20 21:45:53,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 21:45:53,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:53,695 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:45:53,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:45:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash -725408594, now seen corresponding path program 3 times [2022-07-20 21:45:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:45:53,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817269482] [2022-07-20 21:45:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:45:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:45:53,709 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:45:53,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625406685] [2022-07-20 21:45:53,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:45:53,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:45:53,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:45:53,719 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) [2022-07-20 21:45:53,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 21:45:54,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-07-20 21:45:54,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:45:54,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 68 conjunts are in the unsatisfiable core [2022-07-20 21:45:54,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:45:54,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-07-20 21:45:54,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-07-20 21:45:54,184 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:45:54,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 65 [2022-07-20 21:45:54,292 INFO L356 Elim1Store]: treesize reduction 130, result has 9.1 percent of original size [2022-07-20 21:45:54,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 64 treesize of output 124 [2022-07-20 21:45:54,307 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:45:54,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 68 [2022-07-20 21:45:54,559 INFO L356 Elim1Store]: treesize reduction 174, result has 12.6 percent of original size [2022-07-20 21:45:54,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 150 [2022-07-20 21:45:54,572 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:45:54,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 195 [2022-07-20 21:45:54,833 INFO L356 Elim1Store]: treesize reduction 393, result has 7.1 percent of original size [2022-07-20 21:45:54,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 576 treesize of output 636 [2022-07-20 21:45:54,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:45:56,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 111 [2022-07-20 21:45:56,515 INFO L356 Elim1Store]: treesize reduction 253, result has 32.7 percent of original size [2022-07-20 21:45:56,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 251 treesize of output 343 [2022-07-20 21:46:07,632 INFO L356 Elim1Store]: treesize reduction 1025, result has 11.8 percent of original size [2022-07-20 21:46:07,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 248 treesize of output 255 [2022-07-20 21:46:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 5 proven. 53 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:46:08,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:41,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:41,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817269482] [2022-07-20 21:46:41,338 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:41,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625406685] [2022-07-20 21:46:41,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625406685] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:46:41,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:46:41,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-07-20 21:46:41,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041540232] [2022-07-20 21:46:41,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:41,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-07-20 21:46:41,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:41,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-07-20 21:46:41,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=2364, Unknown=13, NotChecked=0, Total=2862 [2022-07-20 21:46:41,341 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 37 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 36 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:46:41,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:41,921 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2022-07-20 21:46:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-20 21:46:41,923 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 36 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-07-20 21:46:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:41,925 INFO L225 Difference]: With dead ends: 115 [2022-07-20 21:46:41,925 INFO L226 Difference]: Without dead ends: 111 [2022-07-20 21:46:41,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1456 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=546, Invalid=2981, Unknown=13, NotChecked=0, Total=3540 [2022-07-20 21:46:41,926 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 39 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 219 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:41,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 326 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 141 Invalid, 0 Unknown, 219 Unchecked, 0.1s Time] [2022-07-20 21:46:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-20 21:46:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2022-07-20 21:46:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.211111111111111) internal successors, (109), 90 states have internal predecessors, (109), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-20 21:46:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-07-20 21:46:41,944 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 63 [2022-07-20 21:46:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:41,945 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-20 21:46:41,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 36 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:46:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-07-20 21:46:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 21:46:41,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:41,946 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 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] [2022-07-20 21:46:41,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:42,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:42,147 INFO L85 PathProgramCache]: Analyzing trace with hash -506553876, now seen corresponding path program 1 times [2022-07-20 21:46:42,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:42,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802836544] [2022-07-20 21:46:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:42,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:42,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:42,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364139748] [2022-07-20 21:46:42,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:42,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:42,164 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) [2022-07-20 21:46:42,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 21:46:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:42,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 21:46:42,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-20 21:46:42,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:42,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:42,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802836544] [2022-07-20 21:46:42,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364139748] [2022-07-20 21:46:42,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364139748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:42,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:42,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 21:46:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025993712] [2022-07-20 21:46:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:42,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 21:46:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:42,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 21:46:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 21:46:42,240 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:42,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:42,255 INFO L93 Difference]: Finished difference Result 145 states and 176 transitions. [2022-07-20 21:46:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 21:46:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2022-07-20 21:46:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:42,258 INFO L225 Difference]: With dead ends: 145 [2022-07-20 21:46:42,258 INFO L226 Difference]: Without dead ends: 106 [2022-07-20 21:46:42,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 21:46:42,261 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:42,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-20 21:46:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2022-07-20 21:46:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.1978021978021978) internal successors, (109), 91 states have internal predecessors, (109), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-20 21:46:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2022-07-20 21:46:42,289 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 63 [2022-07-20 21:46:42,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:42,289 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2022-07-20 21:46:42,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:42,289 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2022-07-20 21:46:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 21:46:42,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:42,290 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 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] [2022-07-20 21:46:42,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 236205423, now seen corresponding path program 1 times [2022-07-20 21:46:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:42,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229528917] [2022-07-20 21:46:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:42,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:42,538 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:42,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982639584] [2022-07-20 21:46:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:42,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:42,539 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) [2022-07-20 21:46:42,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 21:46:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:42,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 21:46:42,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-20 21:46:42,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:42,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:42,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229528917] [2022-07-20 21:46:42,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:42,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982639584] [2022-07-20 21:46:42,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982639584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:42,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:42,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 21:46:42,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878108906] [2022-07-20 21:46:42,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:42,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 21:46:42,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:42,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 21:46:42,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:46:42,605 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:42,633 INFO L93 Difference]: Finished difference Result 155 states and 189 transitions. [2022-07-20 21:46:42,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 21:46:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2022-07-20 21:46:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:42,635 INFO L225 Difference]: With dead ends: 155 [2022-07-20 21:46:42,635 INFO L226 Difference]: Without dead ends: 115 [2022-07-20 21:46:42,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 21:46:42,636 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:42,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 190 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:42,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-20 21:46:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2022-07-20 21:46:42,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 94 states have internal predecessors, (112), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2022-07-20 21:46:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 131 transitions. [2022-07-20 21:46:42,648 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 131 transitions. Word has length 63 [2022-07-20 21:46:42,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:42,648 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 131 transitions. [2022-07-20 21:46:42,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 131 transitions. [2022-07-20 21:46:42,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-20 21:46:42,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:42,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 2, 2, 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] [2022-07-20 21:46:42,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-20 21:46:42,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1172698608, now seen corresponding path program 4 times [2022-07-20 21:46:42,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:42,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929358101] [2022-07-20 21:46:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:42,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:42,878 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:42,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952630326] [2022-07-20 21:46:42,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-20 21:46:42,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:42,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:42,879 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:42,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-20 21:46:42,928 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-20 21:46:42,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:46:42,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:46:42,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:46:43,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-20 21:46:43,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:43,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929358101] [2022-07-20 21:46:43,088 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:43,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952630326] [2022-07-20 21:46:43,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952630326] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:43,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:43,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-07-20 21:46:43,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451425290] [2022-07-20 21:46:43,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:43,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:46:43,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:46:43,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:46:43,090 INFO L87 Difference]: Start difference. First operand 109 states and 131 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:43,258 INFO L93 Difference]: Finished difference Result 282 states and 348 transitions. [2022-07-20 21:46:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 21:46:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-07-20 21:46:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:43,259 INFO L225 Difference]: With dead ends: 282 [2022-07-20 21:46:43,259 INFO L226 Difference]: Without dead ends: 196 [2022-07-20 21:46:43,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-07-20 21:46:43,260 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 172 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:43,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 171 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:46:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-07-20 21:46:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 156. [2022-07-20 21:46:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 134 states have internal predecessors, (158), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-07-20 21:46:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 187 transitions. [2022-07-20 21:46:43,284 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 187 transitions. Word has length 65 [2022-07-20 21:46:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:43,284 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 187 transitions. [2022-07-20 21:46:43,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:43,285 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 187 transitions. [2022-07-20 21:46:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-20 21:46:43,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:43,286 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 2, 2, 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] [2022-07-20 21:46:43,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:43,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-20 21:46:43,488 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash 785313200, now seen corresponding path program 5 times [2022-07-20 21:46:43,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:43,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635444762] [2022-07-20 21:46:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:43,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:43,495 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:43,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471263957] [2022-07-20 21:46:43,495 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-20 21:46:43,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:43,497 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:43,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-20 21:46:43,833 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-07-20 21:46:43,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:46:43,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:46:43,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-20 21:46:43,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-20 21:46:43,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:43,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635444762] [2022-07-20 21:46:43,935 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:43,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471263957] [2022-07-20 21:46:43,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471263957] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:43,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:43,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-07-20 21:46:43,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44590126] [2022-07-20 21:46:43,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:43,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:46:43,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:43,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:46:43,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:46:43,937 INFO L87 Difference]: Start difference. First operand 156 states and 187 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:44,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:44,149 INFO L93 Difference]: Finished difference Result 214 states and 252 transitions. [2022-07-20 21:46:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 21:46:44,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-07-20 21:46:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:44,151 INFO L225 Difference]: With dead ends: 214 [2022-07-20 21:46:44,151 INFO L226 Difference]: Without dead ends: 163 [2022-07-20 21:46:44,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-20 21:46:44,152 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 105 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:44,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 282 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:46:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-07-20 21:46:44,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 156. [2022-07-20 21:46:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.1567164179104477) internal successors, (155), 134 states have internal predecessors, (155), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-07-20 21:46:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2022-07-20 21:46:44,165 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 65 [2022-07-20 21:46:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:44,166 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2022-07-20 21:46:44,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2022-07-20 21:46:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-20 21:46:44,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:44,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-07-20 21:46:44,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:44,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-20 21:46:44,375 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash -834557719, now seen corresponding path program 1 times [2022-07-20 21:46:44,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:44,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775782697] [2022-07-20 21:46:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:44,383 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:44,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551937595] [2022-07-20 21:46:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:44,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:44,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:44,386 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:44,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-20 21:46:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:44,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:46:44,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:44,452 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-20 21:46:44,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:46:44,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:44,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775782697] [2022-07-20 21:46:44,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:44,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551937595] [2022-07-20 21:46:44,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551937595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:46:44,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:46:44,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 21:46:44,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393344584] [2022-07-20 21:46:44,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:46:44,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 21:46:44,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:44,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 21:46:44,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:46:44,454 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:44,480 INFO L93 Difference]: Finished difference Result 248 states and 293 transitions. [2022-07-20 21:46:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 21:46:44,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2022-07-20 21:46:44,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:44,481 INFO L225 Difference]: With dead ends: 248 [2022-07-20 21:46:44,482 INFO L226 Difference]: Without dead ends: 160 [2022-07-20 21:46:44,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 21:46:44,482 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:44,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 162 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:46:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-20 21:46:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2022-07-20 21:46:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.1343283582089552) internal successors, (152), 134 states have internal predecessors, (152), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-07-20 21:46:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 181 transitions. [2022-07-20 21:46:44,496 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 181 transitions. Word has length 69 [2022-07-20 21:46:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:44,496 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 181 transitions. [2022-07-20 21:46:44,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:46:44,496 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 181 transitions. [2022-07-20 21:46:44,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-20 21:46:44,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:44,497 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1] [2022-07-20 21:46:44,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:44,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-20 21:46:44,712 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:44,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1276732650, now seen corresponding path program 1 times [2022-07-20 21:46:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:44,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361163379] [2022-07-20 21:46:44,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:44,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:44,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:44,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616001606] [2022-07-20 21:46:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:44,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:44,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:44,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-20 21:46:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:44,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-20 21:46:44,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-20 21:46:44,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-20 21:46:45,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:45,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361163379] [2022-07-20 21:46:45,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:45,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616001606] [2022-07-20 21:46:45,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616001606] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:45,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:45,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2022-07-20 21:46:45,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600296414] [2022-07-20 21:46:45,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:45,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-20 21:46:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-20 21:46:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-07-20 21:46:45,063 INFO L87 Difference]: Start difference. First operand 156 states and 181 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-20 21:46:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:45,377 INFO L93 Difference]: Finished difference Result 213 states and 239 transitions. [2022-07-20 21:46:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-20 21:46:45,378 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 69 [2022-07-20 21:46:45,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:45,379 INFO L225 Difference]: With dead ends: 213 [2022-07-20 21:46:45,379 INFO L226 Difference]: Without dead ends: 167 [2022-07-20 21:46:45,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-07-20 21:46:45,380 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 63 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:45,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 235 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:46:45,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-07-20 21:46:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 159. [2022-07-20 21:46:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1102941176470589) internal successors, (151), 137 states have internal predecessors, (151), 12 states have call successors, (12), 9 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-20 21:46:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 177 transitions. [2022-07-20 21:46:45,393 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 177 transitions. Word has length 69 [2022-07-20 21:46:45,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:45,394 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 177 transitions. [2022-07-20 21:46:45,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-20 21:46:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 177 transitions. [2022-07-20 21:46:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-20 21:46:45,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:45,396 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 21:46:45,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:45,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-20 21:46:45,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1130035513, now seen corresponding path program 6 times [2022-07-20 21:46:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:45,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005330761] [2022-07-20 21:46:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:45,610 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:45,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709746364] [2022-07-20 21:46:45,611 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-20 21:46:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:45,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:45,612 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:45,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-20 21:46:45,733 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-07-20 21:46:45,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:46:45,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:46:45,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-20 21:46:45,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-20 21:46:45,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005330761] [2022-07-20 21:46:45,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709746364] [2022-07-20 21:46:45,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709746364] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:45,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:45,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-20 21:46:45,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794750394] [2022-07-20 21:46:45,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:45,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 21:46:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 21:46:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-07-20 21:46:45,842 INFO L87 Difference]: Start difference. First operand 159 states and 177 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:46,069 INFO L93 Difference]: Finished difference Result 210 states and 229 transitions. [2022-07-20 21:46:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 21:46:46,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 70 [2022-07-20 21:46:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:46,071 INFO L225 Difference]: With dead ends: 210 [2022-07-20 21:46:46,071 INFO L226 Difference]: Without dead ends: 144 [2022-07-20 21:46:46,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-20 21:46:46,071 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 116 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:46,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 202 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:46:46,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-07-20 21:46:46,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2022-07-20 21:46:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.0940170940170941) internal successors, (128), 117 states have internal predecessors, (128), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-20 21:46:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 152 transitions. [2022-07-20 21:46:46,086 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 152 transitions. Word has length 70 [2022-07-20 21:46:46,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:46,087 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 152 transitions. [2022-07-20 21:46:46,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-20 21:46:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 152 transitions. [2022-07-20 21:46:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-20 21:46:46,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:46,088 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 2, 2, 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] [2022-07-20 21:46:46,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-20 21:46:46,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-20 21:46:46,305 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1478551406, now seen corresponding path program 7 times [2022-07-20 21:46:46,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200987589] [2022-07-20 21:46:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:46,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:46,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:46,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357221877] [2022-07-20 21:46:46,318 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-20 21:46:46,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:46,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:46,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:46,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-20 21:46:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:46,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:46:46,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 21:46:46,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:46:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-07-20 21:46:46,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:46:46,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200987589] [2022-07-20 21:46:46,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:46:46,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357221877] [2022-07-20 21:46:46,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357221877] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:46:46,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:46:46,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-20 21:46:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301007245] [2022-07-20 21:46:46,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:46:46,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 21:46:46,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:46:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 21:46:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-07-20 21:46:46,528 INFO L87 Difference]: Start difference. First operand 138 states and 152 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:46:46,761 INFO L93 Difference]: Finished difference Result 220 states and 248 transitions. [2022-07-20 21:46:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 21:46:46,761 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-07-20 21:46:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:46:46,762 INFO L225 Difference]: With dead ends: 220 [2022-07-20 21:46:46,762 INFO L226 Difference]: Without dead ends: 172 [2022-07-20 21:46:46,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-20 21:46:46,763 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 70 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:46:46,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 159 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:46:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-07-20 21:46:46,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2022-07-20 21:46:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 135 states have (on average 1.0962962962962963) internal successors, (148), 135 states have internal predecessors, (148), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-20 21:46:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 172 transitions. [2022-07-20 21:46:46,775 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 172 transitions. Word has length 71 [2022-07-20 21:46:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:46:46,775 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 172 transitions. [2022-07-20 21:46:46,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 21:46:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 172 transitions. [2022-07-20 21:46:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-20 21:46:46,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:46:46,776 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:46:46,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-20 21:46:46,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-20 21:46:46,984 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:46:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:46:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2141231294, now seen corresponding path program 1 times [2022-07-20 21:46:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:46:46,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574811452] [2022-07-20 21:46:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:46,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:46:46,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:46:46,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524248183] [2022-07-20 21:46:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:46:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:46:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:46:46,999 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:46:46,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-20 21:46:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:46:48,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-20 21:46:48,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:46:48,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-07-20 21:46:48,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-07-20 21:46:48,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-07-20 21:46:48,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2022-07-20 21:46:48,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:48,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 163 [2022-07-20 21:46:48,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:48,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:48,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 28 [2022-07-20 21:46:48,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 68 [2022-07-20 21:46:48,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 150 [2022-07-20 21:46:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:48,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:46:48,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 16 [2022-07-20 21:46:48,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 69 [2022-07-20 21:46:48,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:48,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 145 [2022-07-20 21:46:49,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 77 [2022-07-20 21:46:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:46:49,241 INFO L356 Elim1Store]: treesize reduction 139, result has 44.2 percent of original size [2022-07-20 21:46:49,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 142 [2022-07-20 21:47:01,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:47:01,334 INFO L356 Elim1Store]: treesize reduction 211, result has 49.9 percent of original size [2022-07-20 21:47:01,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 150 treesize of output 309 [2022-07-20 21:49:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:49:49,944 INFO L356 Elim1Store]: treesize reduction 30, result has 87.6 percent of original size [2022-07-20 21:49:49,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 267 treesize of output 387 [2022-07-20 21:49:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 79 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 21:49:52,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:49:58,604 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (<= (mod c_~ARR_SIZE~0 4294967296) 2147483647))) (and (or (forall ((|ULTIMATE.start_main_~index1~0#1| Int) (|ULTIMATE.start_main_~index2~0#1| Int)) (<= (let ((.cse1 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse1)) |c_ULTIMATE.start_main_~#array~0#1.offset| (* |ULTIMATE.start_main_~index2~0#1| 4)) |c_ULTIMATE.start_main_#t~ite13#1|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) 4 (select .cse0 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array~0#1.offset| .cse1)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse1 (- 17179869180)))))) (* c_~ARR_SIZE~0 4))) .cse2) (or (not .cse2) (forall ((|ULTIMATE.start_main_~index1~0#1| Int) (|ULTIMATE.start_main_~index2~0#1| Int)) (<= (let ((.cse4 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse3 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* |ULTIMATE.start_main_~index1~0#1| .cse4) |c_ULTIMATE.start_main_~#array~0#1.offset| (* |ULTIMATE.start_main_~index2~0#1| 4)) |c_ULTIMATE.start_main_#t~ite13#1|))) (+ (select .cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse4 4)) (select .cse3 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (select .cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse4)) 4))) (* c_~ARR_SIZE~0 4)))))) is different from false [2022-07-20 21:50:00,652 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (<= (mod c_~ARR_SIZE~0 4294967296) 2147483647))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~index1~0#1| Int) (|ULTIMATE.start_main_~index2~0#1| Int)) (<= (let ((.cse2 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* |ULTIMATE.start_main_~index1~0#1| .cse2) |c_ULTIMATE.start_main_~#array~0#1.offset| (* |ULTIMATE.start_main_~index2~0#1| 4)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|)))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse2 4)) (select .cse1 |c_ULTIMATE.start_main_~#array~0#1.offset|) 4 (select .cse1 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse2))))) (* c_~ARR_SIZE~0 4)))) (or (forall ((|ULTIMATE.start_main_~index1~0#1| Int) (|ULTIMATE.start_main_~index2~0#1| Int)) (<= (let ((.cse4 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse3 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse4)) |c_ULTIMATE.start_main_~#array~0#1.offset| (* |ULTIMATE.start_main_~index2~0#1| 4)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|)))) (+ (select .cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse4 (- 17179869180))) |c_ULTIMATE.start_main_~sum~0#1| (select .cse3 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse3 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array~0#1.offset| .cse4)) 4 (select .cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4))))) (* c_~ARR_SIZE~0 4))) .cse0))) is different from false [2022-07-20 21:50:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:00,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574811452] [2022-07-20 21:50:00,851 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:00,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524248183] [2022-07-20 21:50:00,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524248183] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:50:00,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:50:00,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-07-20 21:50:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018364840] [2022-07-20 21:50:00,851 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:00,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-20 21:50:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-20 21:50:00,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1807, Unknown=2, NotChecked=178, Total=2256 [2022-07-20 21:50:00,852 INFO L87 Difference]: Start difference. First operand 156 states and 172 transitions. Second operand has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 states have internal predecessors, (64), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-20 21:50:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:01,431 INFO L93 Difference]: Finished difference Result 196 states and 214 transitions. [2022-07-20 21:50:01,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-20 21:50:01,432 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 states have internal predecessors, (64), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 84 [2022-07-20 21:50:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:01,432 INFO L225 Difference]: With dead ends: 196 [2022-07-20 21:50:01,433 INFO L226 Difference]: Without dead ends: 176 [2022-07-20 21:50:01,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 53 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=301, Invalid=2057, Unknown=2, NotChecked=190, Total=2550 [2022-07-20 21:50:01,434 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 27 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 292 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:01,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 405 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 292 Unchecked, 0.2s Time] [2022-07-20 21:50:01,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-20 21:50:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2022-07-20 21:50:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 147 states have (on average 1.08843537414966) internal successors, (160), 147 states have internal predecessors, (160), 14 states have call successors, (14), 10 states have call predecessors, (14), 11 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2022-07-20 21:50:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 190 transitions. [2022-07-20 21:50:01,446 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 190 transitions. Word has length 84 [2022-07-20 21:50:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:01,447 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 190 transitions. [2022-07-20 21:50:01,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 states have internal predecessors, (64), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-20 21:50:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 190 transitions. [2022-07-20 21:50:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-20 21:50:01,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:01,448 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:01,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:01,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:01,657 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:01,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash 599706749, now seen corresponding path program 8 times [2022-07-20 21:50:01,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:01,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824386530] [2022-07-20 21:50:01,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:01,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:01,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:01,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894043782] [2022-07-20 21:50:01,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:50:01,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:01,667 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:01,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-20 21:50:02,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:50:02,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:02,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 123 conjunts are in the unsatisfiable core [2022-07-20 21:50:02,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:02,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-07-20 21:50:02,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-07-20 21:50:02,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-07-20 21:50:02,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 69 [2022-07-20 21:50:02,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:02,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:02,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:02,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 151 [2022-07-20 21:50:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:03,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:03,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 22 [2022-07-20 21:50:03,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 88 [2022-07-20 21:50:03,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:03,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 188 [2022-07-20 21:50:03,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 75 [2022-07-20 21:50:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 167 [2022-07-20 21:50:03,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 92 [2022-07-20 21:50:03,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 204 [2022-07-20 21:50:03,637 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-20 21:50:03,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 202 [2022-07-20 21:50:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:03,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 215 [2022-07-20 21:50:04,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:04,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:04,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:04,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:04,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 59 [2022-07-20 21:50:04,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 110 [2022-07-20 21:50:04,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:04,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 246 [2022-07-20 21:50:05,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 147 [2022-07-20 21:50:05,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 275 [2022-07-20 21:50:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:05,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:05,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 83 [2022-07-20 21:50:06,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 133 [2022-07-20 21:50:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 294 [2022-07-20 21:50:06,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:06,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:50:06,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 94 [2022-07-20 21:50:12,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:12,406 INFO L356 Elim1Store]: treesize reduction 316, result has 45.7 percent of original size [2022-07-20 21:50:12,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 130 treesize of output 311