./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:22:48,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:22:48,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:22:48,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:22:48,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:22:48,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:22:48,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:22:48,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:22:48,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:22:48,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:22:48,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:22:48,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:22:48,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:22:48,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:22:48,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:22:48,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:22:48,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:22:48,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:22:48,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:22:48,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:22:48,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:22:48,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:22:48,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:22:48,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:22:48,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:22:48,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:22:48,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:22:48,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:22:48,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:22:48,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:22:48,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:22:48,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:22:48,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:22:48,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:22:48,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:22:48,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:22:48,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:22:48,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:22:48,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:22:48,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:22:48,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:22:48,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:22:48,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:22:48,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:22:48,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:22:48,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:22:48,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:22:48,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:22:48,832 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:22:48,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:22:48,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:22:48,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:22:48,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:22:48,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:22:48,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:22:48,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:22:48,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:22:48,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:22:48,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:22:48,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:22:48,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:22:48,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:22:48,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:22:48,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:22:48,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:22:48,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:22:48,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:22:48,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:22:48,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:22:48,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:22:48,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:22:48,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a [2021-11-05 17:22:49,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:22:49,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:22:49,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:22:49,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:22:49,158 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:22:49,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:22:49,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2ce536d/13dfc15f103d4ce2b48099f67b27050d/FLAG63bd27395 [2021-11-05 17:22:49,987 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:22:49,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:22:50,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2ce536d/13dfc15f103d4ce2b48099f67b27050d/FLAG63bd27395 [2021-11-05 17:22:50,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2ce536d/13dfc15f103d4ce2b48099f67b27050d [2021-11-05 17:22:50,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:22:50,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:22:50,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:22:50,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:22:50,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:22:50,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:22:50" (1/1) ... [2021-11-05 17:22:50,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3337d2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:50, skipping insertion in model container [2021-11-05 17:22:50,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:22:50" (1/1) ... [2021-11-05 17:22:50,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:22:50,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:22:51,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2021-11-05 17:22:51,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:22:51,253 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:22:51,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2021-11-05 17:22:51,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:22:51,565 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:22:51,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51 WrapperNode [2021-11-05 17:22:51,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:22:51,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:22:51,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:22:51,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:22:51,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:51,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:51,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:22:51,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:22:51,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:22:51,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:22:51,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:51,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:22:52,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:22:52,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:22:52,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:22:52,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (1/1) ... [2021-11-05 17:22:52,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:22:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:22:52,422 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) [2021-11-05 17:22:52,435 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 [2021-11-05 17:22:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:22:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 17:22:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:22:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:22:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:22:59,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:22:59,758 INFO L299 CfgBuilder]: Removed 1734 assume(true) statements. [2021-11-05 17:22:59,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:22:59 BoogieIcfgContainer [2021-11-05 17:22:59,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:22:59,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:22:59,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:22:59,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:22:59,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:22:50" (1/3) ... [2021-11-05 17:22:59,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb60c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:22:59, skipping insertion in model container [2021-11-05 17:22:59,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:22:51" (2/3) ... [2021-11-05 17:22:59,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb60c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:22:59, skipping insertion in model container [2021-11-05 17:22:59,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:22:59" (3/3) ... [2021-11-05 17:22:59,772 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:22:59,777 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:22:59,777 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-05 17:22:59,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:22:59,842 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:22:59,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-05 17:22:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 1834 states, 1832 states have (on average 1.4939956331877728) internal successors, (2737), 1833 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:22:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 17:22:59,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:22:59,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1] [2021-11-05 17:22:59,915 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:22:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:22:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1253874950, now seen corresponding path program 1 times [2021-11-05 17:22:59,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:22:59,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161851451] [2021-11-05 17:22:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:22:59,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:00,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:00,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161851451] [2021-11-05 17:23:00,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161851451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:00,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:00,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:23:00,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399447041] [2021-11-05 17:23:00,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:00,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 17:23:00,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 17:23:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:23:00,318 INFO L87 Difference]: Start difference. First operand has 1834 states, 1832 states have (on average 1.4939956331877728) internal successors, (2737), 1833 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:00,406 INFO L93 Difference]: Finished difference Result 3664 states and 5469 transitions. [2021-11-05 17:23:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 17:23:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-05 17:23:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:00,434 INFO L225 Difference]: With dead ends: 3664 [2021-11-05 17:23:00,434 INFO L226 Difference]: Without dead ends: 1799 [2021-11-05 17:23:00,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:23:00,451 INFO L933 BasicCegarLoop]: 2713 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:00,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 8.00ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 17:23:00,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-11-05 17:23:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2021-11-05 17:23:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1798 states have (on average 1.4799777530589544) internal successors, (2661), 1798 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2661 transitions. [2021-11-05 17:23:00,584 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2661 transitions. Word has length 65 [2021-11-05 17:23:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:00,585 INFO L470 AbstractCegarLoop]: Abstraction has 1799 states and 2661 transitions. [2021-11-05 17:23:00,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2661 transitions. [2021-11-05 17:23:00,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 17:23:00,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:00,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1] [2021-11-05 17:23:00,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:23:00,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:00,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:00,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1631549198, now seen corresponding path program 1 times [2021-11-05 17:23:00,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:00,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963864079] [2021-11-05 17:23:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:00,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:00,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:00,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:00,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963864079] [2021-11-05 17:23:00,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963864079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:00,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:00,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:00,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977928806] [2021-11-05 17:23:00,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:00,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:00,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:00,894 INFO L87 Difference]: Start difference. First operand 1799 states and 2661 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:01,033 INFO L93 Difference]: Finished difference Result 4402 states and 6506 transitions. [2021-11-05 17:23:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:01,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-05 17:23:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:01,048 INFO L225 Difference]: With dead ends: 4402 [2021-11-05 17:23:01,048 INFO L226 Difference]: Without dead ends: 2655 [2021-11-05 17:23:01,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:01,057 INFO L933 BasicCegarLoop]: 2660 mSDtfsCounter, 1297 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 5227 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.05ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:01,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 5227 Invalid, 35 Unknown, 0 Unchecked, 11.54ms Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 58.05ms Time] [2021-11-05 17:23:01,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2021-11-05 17:23:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2655. [2021-11-05 17:23:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 1.4713639788997739) internal successors, (3905), 2654 states have internal predecessors, (3905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3905 transitions. [2021-11-05 17:23:01,120 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3905 transitions. Word has length 65 [2021-11-05 17:23:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:01,122 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 3905 transitions. [2021-11-05 17:23:01,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3905 transitions. [2021-11-05 17:23:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 17:23:01,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:01,130 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:01,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:23:01,131 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:01,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash -91525010, now seen corresponding path program 1 times [2021-11-05 17:23:01,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:01,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47029908] [2021-11-05 17:23:01,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:01,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:01,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:01,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47029908] [2021-11-05 17:23:01,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47029908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:01,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:01,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:23:01,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840986606] [2021-11-05 17:23:01,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:01,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:01,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:01,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:01,301 INFO L87 Difference]: Start difference. First operand 2655 states and 3905 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:01,398 INFO L93 Difference]: Finished difference Result 5258 states and 7749 transitions. [2021-11-05 17:23:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:01,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 17:23:01,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:01,409 INFO L225 Difference]: With dead ends: 5258 [2021-11-05 17:23:01,409 INFO L226 Difference]: Without dead ends: 2655 [2021-11-05 17:23:01,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:01,413 INFO L933 BasicCegarLoop]: 2652 mSDtfsCounter, 2604 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.96ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:01,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2604 Valid, 2652 Invalid, 8 Unknown, 0 Unchecked, 5.34ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 18.96ms Time] [2021-11-05 17:23:01,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2021-11-05 17:23:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2655. [2021-11-05 17:23:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 1.4706103993971364) internal successors, (3903), 2654 states have internal predecessors, (3903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3903 transitions. [2021-11-05 17:23:01,474 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3903 transitions. Word has length 93 [2021-11-05 17:23:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:01,474 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 3903 transitions. [2021-11-05 17:23:01,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3903 transitions. [2021-11-05 17:23:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 17:23:01,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:01,478 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:01,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:23:01,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 568006512, now seen corresponding path program 1 times [2021-11-05 17:23:01,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:01,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167039857] [2021-11-05 17:23:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:01,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:01,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:01,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167039857] [2021-11-05 17:23:01,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167039857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:01,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:01,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:23:01,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656460630] [2021-11-05 17:23:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:01,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:23:01,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:23:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:01,571 INFO L87 Difference]: Start difference. First operand 2655 states and 3903 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:01,697 INFO L93 Difference]: Finished difference Result 5262 states and 7749 transitions. [2021-11-05 17:23:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:23:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 17:23:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:01,708 INFO L225 Difference]: With dead ends: 5262 [2021-11-05 17:23:01,708 INFO L226 Difference]: Without dead ends: 2655 [2021-11-05 17:23:01,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:23:01,713 INFO L933 BasicCegarLoop]: 2659 mSDtfsCounter, 1 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7970 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.18ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:01,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7970 Invalid, 9 Unknown, 0 Unchecked, 8.82ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 48.18ms Time] [2021-11-05 17:23:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2021-11-05 17:23:01,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2655. [2021-11-05 17:23:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 1.4698568198944988) internal successors, (3901), 2654 states have internal predecessors, (3901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3901 transitions. [2021-11-05 17:23:01,783 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3901 transitions. Word has length 93 [2021-11-05 17:23:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:01,783 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 3901 transitions. [2021-11-05 17:23:01,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3901 transitions. [2021-11-05 17:23:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-05 17:23:01,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:01,787 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:01,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:23:01,787 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:01,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1785240599, now seen corresponding path program 1 times [2021-11-05 17:23:01,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:01,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264050695] [2021-11-05 17:23:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:01,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:01,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:01,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264050695] [2021-11-05 17:23:01,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264050695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:01,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:01,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:23:01,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885203405] [2021-11-05 17:23:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:01,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:23:01,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:23:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:01,976 INFO L87 Difference]: Start difference. First operand 2655 states and 3901 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:02,139 INFO L93 Difference]: Finished difference Result 5260 states and 7743 transitions. [2021-11-05 17:23:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:23:02,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-05 17:23:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:02,159 INFO L225 Difference]: With dead ends: 5260 [2021-11-05 17:23:02,159 INFO L226 Difference]: Without dead ends: 5258 [2021-11-05 17:23:02,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:23:02,163 INFO L933 BasicCegarLoop]: 5247 mSDtfsCounter, 4937 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 10805 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.01ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:02,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4937 Valid, 10805 Invalid, 16 Unknown, 0 Unchecked, 15.28ms Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 19.01ms Time] [2021-11-05 17:23:02,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5258 states. [2021-11-05 17:23:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5258 to 2657. [2021-11-05 17:23:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 1.4695030120481927) internal successors, (3903), 2656 states have internal predecessors, (3903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3903 transitions. [2021-11-05 17:23:02,267 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3903 transitions. Word has length 96 [2021-11-05 17:23:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:02,268 INFO L470 AbstractCegarLoop]: Abstraction has 2657 states and 3903 transitions. [2021-11-05 17:23:02,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3903 transitions. [2021-11-05 17:23:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 17:23:02,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:02,273 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-05 17:23:02,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:23:02,275 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:02,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash 876338064, now seen corresponding path program 1 times [2021-11-05 17:23:02,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:02,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337967915] [2021-11-05 17:23:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:02,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:02,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:02,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337967915] [2021-11-05 17:23:02,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337967915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:02,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:02,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:02,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250486628] [2021-11-05 17:23:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:02,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:23:02,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:23:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:02,415 INFO L87 Difference]: Start difference. First operand 2657 states and 3903 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:02,662 INFO L93 Difference]: Finished difference Result 7867 states and 11587 transitions. [2021-11-05 17:23:02,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:23:02,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-05 17:23:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:02,682 INFO L225 Difference]: With dead ends: 7867 [2021-11-05 17:23:02,682 INFO L226 Difference]: Without dead ends: 5262 [2021-11-05 17:23:02,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.90ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:02,686 INFO L933 BasicCegarLoop]: 4996 mSDtfsCounter, 5410 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5410 SdHoareTripleChecker+Valid, 7643 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:02,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5410 Valid, 7643 Invalid, 24 Unknown, 0 Unchecked, 14.12ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 67.00ms Time] [2021-11-05 17:23:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2021-11-05 17:23:02,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 2658. [2021-11-05 17:23:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 2657 states have (on average 1.4693263078660144) internal successors, (3904), 2657 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3904 transitions. [2021-11-05 17:23:02,799 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3904 transitions. Word has length 103 [2021-11-05 17:23:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:02,799 INFO L470 AbstractCegarLoop]: Abstraction has 2658 states and 3904 transitions. [2021-11-05 17:23:02,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3904 transitions. [2021-11-05 17:23:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-05 17:23:02,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:02,803 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-05 17:23:02,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:23:02,803 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:02,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:02,803 INFO L85 PathProgramCache]: Analyzing trace with hash -434275537, now seen corresponding path program 1 times [2021-11-05 17:23:02,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:02,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506274542] [2021-11-05 17:23:02,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:02,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:02,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:02,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506274542] [2021-11-05 17:23:02,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506274542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:02,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:02,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:23:02,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108410084] [2021-11-05 17:23:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:02,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:23:02,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:23:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:23:02,955 INFO L87 Difference]: Start difference. First operand 2658 states and 3904 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:03,441 INFO L93 Difference]: Finished difference Result 10137 states and 14938 transitions. [2021-11-05 17:23:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:23:03,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-05 17:23:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:03,475 INFO L225 Difference]: With dead ends: 10137 [2021-11-05 17:23:03,475 INFO L226 Difference]: Without dead ends: 10135 [2021-11-05 17:23:03,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.25ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:23:03,480 INFO L933 BasicCegarLoop]: 7593 mSDtfsCounter, 9795 mSDsluCounter, 15157 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9795 SdHoareTripleChecker+Valid, 22750 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.20ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.84ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:03,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9795 Valid, 22750 Invalid, 51 Unknown, 0 Unchecked, 35.20ms Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 43.84ms Time] [2021-11-05 17:23:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2021-11-05 17:23:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 2659. [2021-11-05 17:23:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 1.4691497366440933) internal successors, (3905), 2658 states have internal predecessors, (3905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3905 transitions. [2021-11-05 17:23:03,651 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3905 transitions. Word has length 105 [2021-11-05 17:23:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:03,652 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 3905 transitions. [2021-11-05 17:23:03,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3905 transitions. [2021-11-05 17:23:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 17:23:03,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:03,656 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:03,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:23:03,657 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1568264917, now seen corresponding path program 1 times [2021-11-05 17:23:03,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:03,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100364058] [2021-11-05 17:23:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:03,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:03,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:03,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100364058] [2021-11-05 17:23:03,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100364058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:03,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:03,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:03,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063245666] [2021-11-05 17:23:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:03,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:03,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:03,833 INFO L87 Difference]: Start difference. First operand 2659 states and 3905 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:04,137 INFO L93 Difference]: Finished difference Result 6115 states and 8982 transitions. [2021-11-05 17:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:04,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-05 17:23:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:04,146 INFO L225 Difference]: With dead ends: 6115 [2021-11-05 17:23:04,146 INFO L226 Difference]: Without dead ends: 3508 [2021-11-05 17:23:04,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:04,151 INFO L933 BasicCegarLoop]: 3885 mSDtfsCounter, 2557 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.04ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:04,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2557 Valid, 5177 Invalid, 9 Unknown, 0 Unchecked, 9.21ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 69.04ms Time] [2021-11-05 17:23:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2021-11-05 17:23:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 2659. [2021-11-05 17:23:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 1.4687735139202407) internal successors, (3904), 2658 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3904 transitions. [2021-11-05 17:23:04,342 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3904 transitions. Word has length 119 [2021-11-05 17:23:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:04,343 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 3904 transitions. [2021-11-05 17:23:04,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3904 transitions. [2021-11-05 17:23:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-05 17:23:04,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:04,348 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:04,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:23:04,349 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:04,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1677758673, now seen corresponding path program 1 times [2021-11-05 17:23:04,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:04,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427507380] [2021-11-05 17:23:04,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:04,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:04,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:04,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427507380] [2021-11-05 17:23:04,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427507380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:04,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:04,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:04,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963290308] [2021-11-05 17:23:04,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:04,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:23:04,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:04,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:23:04,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:04,488 INFO L87 Difference]: Start difference. First operand 2659 states and 3904 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:04,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:04,884 INFO L93 Difference]: Finished difference Result 7872 states and 11589 transitions. [2021-11-05 17:23:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:23:04,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-05 17:23:04,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:04,895 INFO L225 Difference]: With dead ends: 7872 [2021-11-05 17:23:04,895 INFO L226 Difference]: Without dead ends: 5265 [2021-11-05 17:23:04,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.01ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:04,900 INFO L933 BasicCegarLoop]: 5207 mSDtfsCounter, 5151 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 7849 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.53ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.51ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:04,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5151 Valid, 7849 Invalid, 35 Unknown, 0 Unchecked, 13.53ms Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 94.51ms Time] [2021-11-05 17:23:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2021-11-05 17:23:05,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 2663. [2021-11-05 17:23:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2662 states have (on average 1.4684447783621337) internal successors, (3909), 2662 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3909 transitions. [2021-11-05 17:23:05,101 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3909 transitions. Word has length 121 [2021-11-05 17:23:05,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:05,102 INFO L470 AbstractCegarLoop]: Abstraction has 2663 states and 3909 transitions. [2021-11-05 17:23:05,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:05,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3909 transitions. [2021-11-05 17:23:05,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 17:23:05,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:05,107 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:05,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 17:23:05,107 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:05,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1953947601, now seen corresponding path program 1 times [2021-11-05 17:23:05,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:05,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726702440] [2021-11-05 17:23:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:05,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-05 17:23:05,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:05,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726702440] [2021-11-05 17:23:05,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726702440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:05,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:05,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:05,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170779264] [2021-11-05 17:23:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:05,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:05,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:05,200 INFO L87 Difference]: Start difference. First operand 2663 states and 3909 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:05,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:05,501 INFO L93 Difference]: Finished difference Result 5301 states and 7784 transitions. [2021-11-05 17:23:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:05,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-05 17:23:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:05,507 INFO L225 Difference]: With dead ends: 5301 [2021-11-05 17:23:05,507 INFO L226 Difference]: Without dead ends: 2690 [2021-11-05 17:23:05,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:05,512 INFO L933 BasicCegarLoop]: 2582 mSDtfsCounter, 0 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.58ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.59ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:05,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5060 Invalid, 237 Unknown, 0 Unchecked, 5.58ms Time], IncrementalHoareTripleChecker [103 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 145.59ms Time] [2021-11-05 17:23:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2021-11-05 17:23:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2663. [2021-11-05 17:23:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2662 states have (on average 1.43801652892562) internal successors, (3828), 2662 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3828 transitions. [2021-11-05 17:23:05,665 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3828 transitions. Word has length 124 [2021-11-05 17:23:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:05,666 INFO L470 AbstractCegarLoop]: Abstraction has 2663 states and 3828 transitions. [2021-11-05 17:23:05,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3828 transitions. [2021-11-05 17:23:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 17:23:05,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:05,671 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:05,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 17:23:05,672 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash 233252873, now seen corresponding path program 1 times [2021-11-05 17:23:05,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:05,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186129909] [2021-11-05 17:23:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:05,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:05,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:05,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186129909] [2021-11-05 17:23:05,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186129909] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:23:05,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166741668] [2021-11-05 17:23:05,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:05,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:23:05,865 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) [2021-11-05 17:23:05,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 17:23:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:06,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 17:23:06,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:23:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:06,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:23:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:07,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166741668] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:23:07,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 17:23:07,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2021-11-05 17:23:07,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894391479] [2021-11-05 17:23:07,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 17:23:07,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 17:23:07,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:07,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 17:23:07,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-05 17:23:07,143 INFO L87 Difference]: Start difference. First operand 2663 states and 3828 transitions. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 9 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:08,524 INFO L93 Difference]: Finished difference Result 15674 states and 22606 transitions. [2021-11-05 17:23:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:23:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 9 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-05 17:23:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:08,556 INFO L225 Difference]: With dead ends: 15674 [2021-11-05 17:23:08,556 INFO L226 Difference]: Without dead ends: 13063 [2021-11-05 17:23:08,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 51.43ms TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-11-05 17:23:08,568 INFO L933 BasicCegarLoop]: 4924 mSDtfsCounter, 26336 mSDsluCounter, 12763 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26336 SdHoareTripleChecker+Valid, 17687 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.27ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 377.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:08,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26336 Valid, 17687 Invalid, 86 Unknown, 0 Unchecked, 44.27ms Time], IncrementalHoareTripleChecker [17 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 377.00ms Time] [2021-11-05 17:23:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13063 states. [2021-11-05 17:23:08,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13063 to 2670. [2021-11-05 17:23:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2669 states have (on average 1.4376170850505807) internal successors, (3837), 2669 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:08,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3837 transitions. [2021-11-05 17:23:08,849 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3837 transitions. Word has length 127 [2021-11-05 17:23:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:08,849 INFO L470 AbstractCegarLoop]: Abstraction has 2670 states and 3837 transitions. [2021-11-05 17:23:08,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 9 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3837 transitions. [2021-11-05 17:23:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 17:23:08,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:08,855 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:08,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 17:23:09,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 17:23:09,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1927338826, now seen corresponding path program 1 times [2021-11-05 17:23:09,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:09,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984607654] [2021-11-05 17:23:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:09,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:23:09,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:09,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984607654] [2021-11-05 17:23:09,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984607654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:09,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:09,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:23:09,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728260380] [2021-11-05 17:23:09,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:09,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:23:09,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:09,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:23:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:23:09,286 INFO L87 Difference]: Start difference. First operand 2670 states and 3837 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:10,757 INFO L93 Difference]: Finished difference Result 14871 states and 21370 transitions. [2021-11-05 17:23:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 17:23:10,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-05 17:23:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:10,784 INFO L225 Difference]: With dead ends: 14871 [2021-11-05 17:23:10,784 INFO L226 Difference]: Without dead ends: 12239 [2021-11-05 17:23:10,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 113.82ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-05 17:23:10,793 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 20078 mSDsluCounter, 21982 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 208.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20078 SdHoareTripleChecker+Valid, 26860 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.08ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 255.04ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:10,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20078 Valid, 26860 Invalid, 343 Unknown, 0 Unchecked, 57.08ms Time], IncrementalHoareTripleChecker [62 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 255.04ms Time] [2021-11-05 17:23:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12239 states. [2021-11-05 17:23:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12239 to 2670. [2021-11-05 17:23:11,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2669 states have (on average 1.436867740726864) internal successors, (3835), 2669 states have internal predecessors, (3835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3835 transitions. [2021-11-05 17:23:11,075 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3835 transitions. Word has length 132 [2021-11-05 17:23:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:11,075 INFO L470 AbstractCegarLoop]: Abstraction has 2670 states and 3835 transitions. [2021-11-05 17:23:11,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3835 transitions. [2021-11-05 17:23:11,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 17:23:11,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:11,081 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:23:11,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 17:23:11,081 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:11,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1454709166, now seen corresponding path program 1 times [2021-11-05 17:23:11,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:11,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066808986] [2021-11-05 17:23:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:11,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:11,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:11,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066808986] [2021-11-05 17:23:11,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066808986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:11,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:11,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:23:11,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443000474] [2021-11-05 17:23:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:11,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:23:11,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:23:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:23:11,244 INFO L87 Difference]: Start difference. First operand 2670 states and 3835 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:11,913 INFO L93 Difference]: Finished difference Result 10166 states and 14651 transitions. [2021-11-05 17:23:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:23:11,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 17:23:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:11,930 INFO L225 Difference]: With dead ends: 10166 [2021-11-05 17:23:11,931 INFO L226 Difference]: Without dead ends: 7548 [2021-11-05 17:23:11,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:23:11,936 INFO L933 BasicCegarLoop]: 4937 mSDtfsCounter, 6930 mSDsluCounter, 7525 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6930 SdHoareTripleChecker+Valid, 12462 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.52ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:11,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6930 Valid, 12462 Invalid, 28 Unknown, 0 Unchecked, 14.47ms Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 39.52ms Time] [2021-11-05 17:23:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2021-11-05 17:23:12,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 2672. [2021-11-05 17:23:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 1.4365406214900787) internal successors, (3837), 2671 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3837 transitions. [2021-11-05 17:23:12,185 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3837 transitions. Word has length 134 [2021-11-05 17:23:12,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:12,186 INFO L470 AbstractCegarLoop]: Abstraction has 2672 states and 3837 transitions. [2021-11-05 17:23:12,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3837 transitions. [2021-11-05 17:23:12,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-05 17:23:12,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:12,192 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2021-11-05 17:23:12,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 17:23:12,192 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:12,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 550665603, now seen corresponding path program 1 times [2021-11-05 17:23:12,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:12,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477740403] [2021-11-05 17:23:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:12,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:12,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:12,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477740403] [2021-11-05 17:23:12,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477740403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:12,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:12,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:12,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265663896] [2021-11-05 17:23:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:12,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:12,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:12,287 INFO L87 Difference]: Start difference. First operand 2672 states and 3837 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:12,727 INFO L93 Difference]: Finished difference Result 7743 states and 11152 transitions. [2021-11-05 17:23:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-05 17:23:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:12,738 INFO L225 Difference]: With dead ends: 7743 [2021-11-05 17:23:12,738 INFO L226 Difference]: Without dead ends: 5123 [2021-11-05 17:23:12,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:12,742 INFO L933 BasicCegarLoop]: 4937 mSDtfsCounter, 2336 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2336 SdHoareTripleChecker+Valid, 7527 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.09ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.99ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:12,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2336 Valid, 7527 Invalid, 18 Unknown, 0 Unchecked, 7.09ms Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 25.99ms Time] [2021-11-05 17:23:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2021-11-05 17:23:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 2674. [2021-11-05 17:23:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.4362139917695473) internal successors, (3839), 2673 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3839 transitions. [2021-11-05 17:23:12,979 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3839 transitions. Word has length 136 [2021-11-05 17:23:12,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:12,979 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 3839 transitions. [2021-11-05 17:23:12,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3839 transitions. [2021-11-05 17:23:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-05 17:23:12,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:12,984 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2021-11-05 17:23:12,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 17:23:12,985 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash -662167478, now seen corresponding path program 1 times [2021-11-05 17:23:12,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:12,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090895199] [2021-11-05 17:23:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:12,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:13,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:13,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090895199] [2021-11-05 17:23:13,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090895199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:13,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:13,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:23:13,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100920055] [2021-11-05 17:23:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:13,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:23:13,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:23:13,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:23:13,130 INFO L87 Difference]: Start difference. First operand 2674 states and 3839 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:14,464 INFO L93 Difference]: Finished difference Result 17825 states and 25727 transitions. [2021-11-05 17:23:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:23:14,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-05 17:23:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:14,501 INFO L225 Difference]: With dead ends: 17825 [2021-11-05 17:23:14,502 INFO L226 Difference]: Without dead ends: 15203 [2021-11-05 17:23:14,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 36.86ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:23:14,512 INFO L933 BasicCegarLoop]: 6252 mSDtfsCounter, 16731 mSDsluCounter, 14991 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 180.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16731 SdHoareTripleChecker+Valid, 21243 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.92ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 224.56ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:14,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16731 Valid, 21243 Invalid, 234 Unknown, 0 Unchecked, 23.92ms Time], IncrementalHoareTripleChecker [16 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 224.56ms Time] [2021-11-05 17:23:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15203 states. [2021-11-05 17:23:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15203 to 2677. [2021-11-05 17:23:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2676 states have (on average 1.4357249626307922) internal successors, (3842), 2676 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:14,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3842 transitions. [2021-11-05 17:23:14,926 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3842 transitions. Word has length 140 [2021-11-05 17:23:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:14,926 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 3842 transitions. [2021-11-05 17:23:14,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:14,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3842 transitions. [2021-11-05 17:23:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-05 17:23:14,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:14,931 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2021-11-05 17:23:14,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 17:23:14,932 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1448079762, now seen corresponding path program 1 times [2021-11-05 17:23:14,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:14,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625956669] [2021-11-05 17:23:14,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:14,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 17:23:15,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:15,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625956669] [2021-11-05 17:23:15,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625956669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:15,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:23:15,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:23:15,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419227559] [2021-11-05 17:23:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:15,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:23:15,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:15,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:23:15,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:15,167 INFO L87 Difference]: Start difference. First operand 2677 states and 3842 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:15,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:15,493 INFO L93 Difference]: Finished difference Result 5327 states and 7659 transitions. [2021-11-05 17:23:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:23:15,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-05 17:23:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:15,499 INFO L225 Difference]: With dead ends: 5327 [2021-11-05 17:23:15,499 INFO L226 Difference]: Without dead ends: 2682 [2021-11-05 17:23:15,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:23:15,504 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 0 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.64ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.35ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:15,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5198 Invalid, 29 Unknown, 0 Unchecked, 3.64ms Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 34.35ms Time] [2021-11-05 17:23:15,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2021-11-05 17:23:15,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2021-11-05 17:23:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2681 states have (on average 1.4349123461395001) internal successors, (3847), 2681 states have internal predecessors, (3847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3847 transitions. [2021-11-05 17:23:15,746 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3847 transitions. Word has length 142 [2021-11-05 17:23:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:15,746 INFO L470 AbstractCegarLoop]: Abstraction has 2682 states and 3847 transitions. [2021-11-05 17:23:15,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3847 transitions. [2021-11-05 17:23:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-05 17:23:15,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:15,752 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1] [2021-11-05 17:23:15,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 17:23:15,752 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1644420281, now seen corresponding path program 1 times [2021-11-05 17:23:15,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:15,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109206067] [2021-11-05 17:23:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:15,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 17:23:15,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:15,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109206067] [2021-11-05 17:23:15,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109206067] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:23:15,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092968131] [2021-11-05 17:23:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:15,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:15,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:23:15,975 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) [2021-11-05 17:23:16,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 17:23:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:16,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 17:23:16,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:23:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-05 17:23:16,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:23:16,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092968131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:23:16,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:23:16,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-05 17:23:16,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338576496] [2021-11-05 17:23:16,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:23:16,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:23:16,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:23:16,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:23:16,796 INFO L87 Difference]: Start difference. First operand 2682 states and 3847 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:17,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:17,355 INFO L93 Difference]: Finished difference Result 7929 states and 11404 transitions. [2021-11-05 17:23:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:23:17,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-11-05 17:23:17,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:17,364 INFO L225 Difference]: With dead ends: 7929 [2021-11-05 17:23:17,364 INFO L226 Difference]: Without dead ends: 5294 [2021-11-05 17:23:17,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 44.12ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-05 17:23:17,369 INFO L933 BasicCegarLoop]: 5147 mSDtfsCounter, 2542 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 18039 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.93ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:17,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2542 Valid, 18039 Invalid, 25 Unknown, 0 Unchecked, 9.45ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 80.93ms Time] [2021-11-05 17:23:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-11-05 17:23:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 2682. [2021-11-05 17:23:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2681 states have (on average 1.434166355837374) internal successors, (3845), 2681 states have internal predecessors, (3845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3845 transitions. [2021-11-05 17:23:17,670 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3845 transitions. Word has length 147 [2021-11-05 17:23:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:17,671 INFO L470 AbstractCegarLoop]: Abstraction has 2682 states and 3845 transitions. [2021-11-05 17:23:17,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3845 transitions. [2021-11-05 17:23:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-05 17:23:17,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:17,676 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1] [2021-11-05 17:23:17,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 17:23:17,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-05 17:23:17,891 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash 956736394, now seen corresponding path program 1 times [2021-11-05 17:23:17,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:17,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708058094] [2021-11-05 17:23:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:17,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 17:23:18,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:18,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708058094] [2021-11-05 17:23:18,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708058094] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:23:18,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083302376] [2021-11-05 17:23:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:18,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:23:18,106 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) [2021-11-05 17:23:18,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 17:23:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:19,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-05 17:23:19,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:23:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 17:23:19,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:23:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 17:23:19,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083302376] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:23:19,745 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 17:23:19,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-05 17:23:19,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893466189] [2021-11-05 17:23:19,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 17:23:19,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:23:19,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:19,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:23:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:23:19,746 INFO L87 Difference]: Start difference. First operand 2682 states and 3845 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:20,227 INFO L93 Difference]: Finished difference Result 5350 states and 7692 transitions. [2021-11-05 17:23:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 17:23:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-11-05 17:23:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:20,230 INFO L225 Difference]: With dead ends: 5350 [2021-11-05 17:23:20,230 INFO L226 Difference]: Without dead ends: 2701 [2021-11-05 17:23:20,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 39.64ms TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:23:20,233 INFO L933 BasicCegarLoop]: 2604 mSDtfsCounter, 0 mSDsluCounter, 10360 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12964 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.31ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.46ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:20,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12964 Invalid, 134 Unknown, 0 Unchecked, 6.31ms Time], IncrementalHoareTripleChecker [45 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 122.46ms Time] [2021-11-05 17:23:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2021-11-05 17:23:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2701. [2021-11-05 17:23:20,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 1.431111111111111) internal successors, (3864), 2700 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3864 transitions. [2021-11-05 17:23:20,533 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3864 transitions. Word has length 147 [2021-11-05 17:23:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:20,533 INFO L470 AbstractCegarLoop]: Abstraction has 2701 states and 3864 transitions. [2021-11-05 17:23:20,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3864 transitions. [2021-11-05 17:23:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-05 17:23:20,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:20,538 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:23:20,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 17:23:20,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-05 17:23:20,764 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash 368693425, now seen corresponding path program 1 times [2021-11-05 17:23:20,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:20,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782896691] [2021-11-05 17:23:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:20,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:21,024 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-05 17:23:21,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:21,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782896691] [2021-11-05 17:23:21,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782896691] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:23:21,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699196625] [2021-11-05 17:23:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:21,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:21,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:23:21,026 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) [2021-11-05 17:23:21,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 17:23:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:23,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-05 17:23:23,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:23:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-05 17:23:23,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:23:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-05 17:23:23,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699196625] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:23:23,903 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 17:23:23,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 5] total 12 [2021-11-05 17:23:23,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960959861] [2021-11-05 17:23:23,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 17:23:23,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 17:23:23,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:23:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 17:23:23,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-05 17:23:23,905 INFO L87 Difference]: Start difference. First operand 2701 states and 3864 transitions. Second operand has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:24,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:23:24,577 INFO L93 Difference]: Finished difference Result 5384 states and 7725 transitions. [2021-11-05 17:23:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 17:23:24,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-05 17:23:24,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:23:24,582 INFO L225 Difference]: With dead ends: 5384 [2021-11-05 17:23:24,582 INFO L226 Difference]: Without dead ends: 2719 [2021-11-05 17:23:24,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 205.51ms TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2021-11-05 17:23:24,588 INFO L933 BasicCegarLoop]: 2599 mSDtfsCounter, 2563 mSDsluCounter, 7802 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2563 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.92ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.82ms IncrementalHoareTripleChecker+Time [2021-11-05 17:23:24,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2563 Valid, 10401 Invalid, 272 Unknown, 0 Unchecked, 8.92ms Time], IncrementalHoareTripleChecker [82 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 205.82ms Time] [2021-11-05 17:23:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-11-05 17:23:24,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2021-11-05 17:23:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2718 states have (on average 1.4300956585724798) internal successors, (3887), 2718 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3887 transitions. [2021-11-05 17:23:24,901 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3887 transitions. Word has length 166 [2021-11-05 17:23:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:23:24,902 INFO L470 AbstractCegarLoop]: Abstraction has 2719 states and 3887 transitions. [2021-11-05 17:23:24,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:23:24,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3887 transitions. [2021-11-05 17:23:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-05 17:23:24,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:23:24,907 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:23:24,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-05 17:23:25,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:25,135 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:23:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:23:25,136 INFO L85 PathProgramCache]: Analyzing trace with hash -499696079, now seen corresponding path program 2 times [2021-11-05 17:23:25,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:23:25,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584506714] [2021-11-05 17:23:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:23:25,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:23:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:23:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-05 17:23:25,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:23:25,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584506714] [2021-11-05 17:23:25,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584506714] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:23:25,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210643517] [2021-11-05 17:23:25,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 17:23:25,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:23:25,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:23:25,460 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) [2021-11-05 17:23:25,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 17:25:03,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 17:25:03,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 17:25:03,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1899 conjuncts, 166 conjunts are in the unsatisfiable core [2021-11-05 17:25:03,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:25:03,596 INFO L388 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 6 treesize of output 5 [2021-11-05 17:25:03,716 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-05 17:25:03,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-05 17:25:03,895 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-05 17:25:03,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-05 17:25:04,664 INFO L354 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2021-11-05 17:25:04,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 45 treesize of output 65 [2021-11-05 17:25:05,402 INFO L354 Elim1Store]: treesize reduction 96, result has 15.0 percent of original size [2021-11-05 17:25:05,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 60 treesize of output 64 [2021-11-05 17:25:05,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:25:05,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:25:05,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-11-05 17:25:05,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:25:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:25:05,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 17:25:05,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:25:05,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:05,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-05 17:25:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2021-11-05 17:25:06,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-05 17:25:06,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:06,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-05 17:25:06,673 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-05 17:25:06,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 587 treesize of output 466 [2021-11-05 17:25:07,504 INFO L354 Elim1Store]: treesize reduction 893, result has 7.6 percent of original size [2021-11-05 17:25:07,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 429 treesize of output 427 [2021-11-05 17:25:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:07,862 INFO L354 Elim1Store]: treesize reduction 496, result has 10.0 percent of original size [2021-11-05 17:25:07,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 430 treesize of output 430 [2021-11-05 17:25:07,936 INFO L354 Elim1Store]: treesize reduction 328, result has 11.8 percent of original size [2021-11-05 17:25:07,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 430 treesize of output 371 [2021-11-05 17:25:07,952 INFO L354 Elim1Store]: treesize reduction 136, result has 0.7 percent of original size [2021-11-05 17:25:07,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 245 treesize of output 215 [2021-11-05 17:25:07,964 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-05 17:25:07,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 182 treesize of output 152 [2021-11-05 17:25:08,027 INFO L354 Elim1Store]: treesize reduction 262, result has 13.8 percent of original size [2021-11-05 17:25:08,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 140 [2021-11-05 17:25:08,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,426 INFO L354 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2021-11-05 17:25:08,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 140 [2021-11-05 17:25:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,456 INFO L354 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2021-11-05 17:25:08,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 128 treesize of output 125 [2021-11-05 17:25:08,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 70 [2021-11-05 17:25:08,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2021-11-05 17:25:08,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,753 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:08,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 150 [2021-11-05 17:25:08,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:08,785 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:08,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 131 [2021-11-05 17:25:09,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,355 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:09,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 150 [2021-11-05 17:25:09,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,382 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:09,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 131 [2021-11-05 17:25:09,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:09,447 INFO L354 Elim1Store]: treesize reduction 111, result has 7.5 percent of original size [2021-11-05 17:25:09,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 79 [2021-11-05 17:25:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,589 INFO L354 Elim1Store]: treesize reduction 139, result has 12.0 percent of original size [2021-11-05 17:25:12,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 86 treesize of output 116 [2021-11-05 17:25:12,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,640 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:12,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 150 [2021-11-05 17:25:12,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:12,682 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:12,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 131 [2021-11-05 17:25:15,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 108 [2021-11-05 17:25:15,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,100 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:15,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 150 [2021-11-05 17:25:15,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:25:15,134 INFO L354 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2021-11-05 17:25:15,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 131 [2021-11-05 17:25:17,457 INFO L354 Elim1Store]: treesize reduction 488, result has 10.9 percent of original size [2021-11-05 17:25:17,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 577 treesize of output 463 [2021-11-05 17:25:17,475 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-05 17:25:17,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 562 treesize of output 357 [2021-11-05 17:25:17,497 INFO L354 Elim1Store]: treesize reduction 156, result has 0.6 percent of original size [2021-11-05 17:25:17,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 522 treesize of output 382 [2021-11-05 17:25:17,638 INFO L354 Elim1Store]: treesize reduction 434, result has 17.0 percent of original size [2021-11-05 17:25:17,638 INFO L388 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 356 treesize of output 352 [2021-11-05 17:25:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-05 17:25:17,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:25:17,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210643517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:25:17,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:25:17,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [9] total 41 [2021-11-05 17:25:17,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196254230] [2021-11-05 17:25:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:25:17,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-05 17:25:17,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:25:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-05 17:25:17,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1521, Unknown=3, NotChecked=0, Total=1640 [2021-11-05 17:25:17,815 INFO L87 Difference]: Start difference. First operand 2719 states and 3887 transitions. Second operand has 34 states, 34 states have (on average 4.382352941176471) internal successors, (149), 34 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:21,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:24,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:26,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:28,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:29,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:31,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:35,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:37,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:39,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:41,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:43,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:46,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:51,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:53,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:58,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:00,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:15,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:22,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:24,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:28,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:30,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:32,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:40,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:43,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:44,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:46,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:50,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:51,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:53,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:55,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:58,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:27:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:27:06,339 INFO L93 Difference]: Finished difference Result 63698 states and 92133 transitions. [2021-11-05 17:27:06,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-05 17:27:06,339 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.382352941176471) internal successors, (149), 34 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-05 17:27:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:27:06,447 INFO L225 Difference]: With dead ends: 63698 [2021-11-05 17:27:06,448 INFO L226 Difference]: Without dead ends: 63696 [2021-11-05 17:27:06,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7797 ImplicationChecksByTransitivity, 12190.86ms TimeCoverageRelationStatistics Valid=2240, Invalid=21937, Unknown=3, NotChecked=0, Total=24180 [2021-11-05 17:27:06,473 INFO L933 BasicCegarLoop]: 34841 mSDtfsCounter, 44107 mSDsluCounter, 783937 mSDsCounter, 0 mSdLazyCounter, 20955 mSolverCounterSat, 188 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88867.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44107 SdHoareTripleChecker+Valid, 818778 SdHoareTripleChecker+Invalid, 69200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 771.04ms SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 20955 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 48042 IncrementalHoareTripleChecker+Unchecked, 92833.58ms IncrementalHoareTripleChecker+Time [2021-11-05 17:27:06,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44107 Valid, 818778 Invalid, 69200 Unknown, 0 Unchecked, 771.04ms Time], IncrementalHoareTripleChecker [188 Valid, 20955 Invalid, 15 Unknown, 48042 Unchecked, 92833.58ms Time] [2021-11-05 17:27:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63696 states. [2021-11-05 17:27:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63696 to 3195. [2021-11-05 17:27:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3194 states have (on average 1.4276768941765812) internal successors, (4560), 3194 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:27:07,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4560 transitions. [2021-11-05 17:27:07,469 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4560 transitions. Word has length 174 [2021-11-05 17:27:07,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:27:07,469 INFO L470 AbstractCegarLoop]: Abstraction has 3195 states and 4560 transitions. [2021-11-05 17:27:07,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.382352941176471) internal successors, (149), 34 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:27:07,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4560 transitions. [2021-11-05 17:27:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-05 17:27:07,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:27:07,476 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:27:07,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-05 17:27:07,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:27:07,704 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:27:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:27:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -496925516, now seen corresponding path program 1 times [2021-11-05 17:27:07,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:27:07,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644668252] [2021-11-05 17:27:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:27:07,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:27:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:27:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-05 17:27:08,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:27:08,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644668252] [2021-11-05 17:27:08,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644668252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:27:08,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550569304] [2021-11-05 17:27:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:27:08,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:27:08,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:27:08,026 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) [2021-11-05 17:27:08,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 17:27:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:27:10,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-05 17:27:10,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:27:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-05 17:27:10,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:27:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-05 17:27:11,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550569304] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:27:11,098 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 17:27:11,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2021-11-05 17:27:11,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348129446] [2021-11-05 17:27:11,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 17:27:11,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-05 17:27:11,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:27:11,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-05 17:27:11,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-11-05 17:27:11,099 INFO L87 Difference]: Start difference. First operand 3195 states and 4560 transitions. Second operand has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:27:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:27:12,324 INFO L93 Difference]: Finished difference Result 6338 states and 9065 transitions. [2021-11-05 17:27:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 17:27:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-05 17:27:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:27:12,327 INFO L225 Difference]: With dead ends: 6338 [2021-11-05 17:27:12,327 INFO L226 Difference]: Without dead ends: 3199 [2021-11-05 17:27:12,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 342 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 309.44ms TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2021-11-05 17:27:12,331 INFO L933 BasicCegarLoop]: 2604 mSDtfsCounter, 0 mSDsluCounter, 18130 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 386.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20734 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.73ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 425.91ms IncrementalHoareTripleChecker+Time [2021-11-05 17:27:12,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20734 Invalid, 323 Unknown, 0 Unchecked, 8.73ms Time], IncrementalHoareTripleChecker [99 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 425.91ms Time] [2021-11-05 17:27:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-11-05 17:27:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3199. [2021-11-05 17:27:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 1.4271419637273295) internal successors, (4564), 3198 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:27:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4564 transitions. [2021-11-05 17:27:12,865 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4564 transitions. Word has length 174 [2021-11-05 17:27:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:27:12,866 INFO L470 AbstractCegarLoop]: Abstraction has 3199 states and 4564 transitions. [2021-11-05 17:27:12,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:27:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4564 transitions. [2021-11-05 17:27:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-05 17:27:12,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:27:12,872 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:27:12,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-05 17:27:13,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:27:13,088 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:27:13,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:27:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1110365324, now seen corresponding path program 2 times [2021-11-05 17:27:13,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:27:13,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603413559] [2021-11-05 17:27:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:27:13,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:27:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:27:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-05 17:27:21,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:27:21,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603413559] [2021-11-05 17:27:21,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603413559] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:27:21,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106174944] [2021-11-05 17:27:21,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 17:27:21,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:27:21,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:27:21,959 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) [2021-11-05 17:27:21,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-05 17:27:50,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 17:27:50,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 17:27:50,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 140 conjunts are in the unsatisfiable core [2021-11-05 17:27:50,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:27:50,720 INFO L388 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 6 treesize of output 5 [2021-11-05 17:27:51,068 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 17:27:51,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-05 17:27:51,286 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-05 17:27:51,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-05 17:27:51,920 INFO L354 Elim1Store]: treesize reduction 160, result has 22.0 percent of original size [2021-11-05 17:27:51,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 47 treesize of output 77 [2021-11-05 17:27:52,808 INFO L354 Elim1Store]: treesize reduction 100, result has 17.4 percent of original size [2021-11-05 17:27:52,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 67 treesize of output 75 [2021-11-05 17:27:53,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:27:53,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:27:53,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-11-05 17:27:53,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:27:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:27:53,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 17:27:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:27:53,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2021-11-05 17:27:53,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-05 17:27:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-05 17:27:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-05 17:27:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-05 17:27:53,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 476 treesize of output 389 [2021-11-05 17:27:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,909 INFO L354 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2021-11-05 17:27:53,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 198 treesize of output 188 [2021-11-05 17:27:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,961 INFO L354 Elim1Store]: treesize reduction 120, result has 23.6 percent of original size [2021-11-05 17:27:53,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 164 treesize of output 154 [2021-11-05 17:27:53,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:53,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:54,000 INFO L354 Elim1Store]: treesize reduction 164, result has 21.2 percent of original size [2021-11-05 17:27:54,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 139 treesize of output 139 [2021-11-05 17:27:54,618 INFO L354 Elim1Store]: treesize reduction 174, result has 18.3 percent of original size [2021-11-05 17:27:54,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 293 treesize of output 249 [2021-11-05 17:27:54,697 INFO L354 Elim1Store]: treesize reduction 292, result has 13.9 percent of original size [2021-11-05 17:27:54,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 291 treesize of output 288 [2021-11-05 17:27:54,758 INFO L354 Elim1Store]: treesize reduction 420, result has 13.6 percent of original size [2021-11-05 17:27:54,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 276 treesize of output 272 [2021-11-05 17:27:54,769 INFO L354 Elim1Store]: treesize reduction 200, result has 0.5 percent of original size [2021-11-05 17:27:54,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 257 treesize of output 253 [2021-11-05 17:27:55,165 INFO L354 Elim1Store]: treesize reduction 390, result has 14.5 percent of original size [2021-11-05 17:27:55,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 257 treesize of output 268 [2021-11-05 17:27:55,215 INFO L354 Elim1Store]: treesize reduction 272, result has 15.3 percent of original size [2021-11-05 17:27:55,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 244 treesize of output 240 [2021-11-05 17:27:55,253 INFO L354 Elim1Store]: treesize reduction 164, result has 15.9 percent of original size [2021-11-05 17:27:55,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 225 treesize of output 171 [2021-11-05 17:27:55,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:27:55,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,850 INFO L354 Elim1Store]: treesize reduction 113, result has 7.4 percent of original size [2021-11-05 17:27:55,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 81 [2021-11-05 17:27:55,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:55,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-05 17:27:58,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,427 INFO L354 Elim1Store]: treesize reduction 141, result has 11.9 percent of original size [2021-11-05 17:27:58,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 88 treesize of output 118 [2021-11-05 17:27:58,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:27:58,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:27:58,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-05 17:27:58,712 INFO L354 Elim1Store]: treesize reduction 496, result has 12.4 percent of original size [2021-11-05 17:27:58,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 604 treesize of output 459 [2021-11-05 17:27:58,721 INFO L354 Elim1Store]: treesize reduction 232, result has 0.4 percent of original size [2021-11-05 17:27:58,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 585 treesize of output 342 [2021-11-05 17:27:58,771 INFO L354 Elim1Store]: treesize reduction 272, result has 12.3 percent of original size [2021-11-05 17:27:58,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 327 treesize of output 239 [2021-11-05 17:27:58,786 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-05 17:27:58,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 298 treesize of output 241 [2021-11-05 17:27:58,794 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-05 17:27:58,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 105 treesize of output 56 [2021-11-05 17:27:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-05 17:27:58,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:27:58,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106174944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:27:58,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:27:58,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [35] total 64 [2021-11-05 17:27:58,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197694552] [2021-11-05 17:27:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:27:58,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-05 17:27:58,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:27:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-05 17:27:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=3834, Unknown=2, NotChecked=0, Total=4032 [2021-11-05 17:27:58,814 INFO L87 Difference]: Start difference. First operand 3199 states and 4564 transitions. Second operand has 33 states, 33 states have (on average 4.515151515151516) internal successors, (149), 33 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:02,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:07,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:10,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:14,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:15,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:16,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:23,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:31,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:39,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:01,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:29:01,379 INFO L93 Difference]: Finished difference Result 78122 states and 113045 transitions. [2021-11-05 17:29:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2021-11-05 17:29:01,379 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.515151515151516) internal successors, (149), 33 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-05 17:29:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:29:01,502 INFO L225 Difference]: With dead ends: 78122 [2021-11-05 17:29:01,502 INFO L226 Difference]: Without dead ends: 78120 [2021-11-05 17:29:01,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12070 ImplicationChecksByTransitivity, 11434.99ms TimeCoverageRelationStatistics Valid=2961, Invalid=34867, Unknown=2, NotChecked=0, Total=37830 [2021-11-05 17:29:01,529 INFO L933 BasicCegarLoop]: 30369 mSDtfsCounter, 71008 mSDsluCounter, 488958 mSDsCounter, 0 mSdLazyCounter, 12395 mSolverCounterSat, 229 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34356.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 71008 SdHoareTripleChecker+Valid, 519327 SdHoareTripleChecker+Invalid, 32418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 589.16ms SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 12395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 19793 IncrementalHoareTripleChecker+Unchecked, 36627.60ms IncrementalHoareTripleChecker+Time [2021-11-05 17:29:01,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71008 Valid, 519327 Invalid, 32418 Unknown, 0 Unchecked, 589.16ms Time], IncrementalHoareTripleChecker [229 Valid, 12395 Invalid, 1 Unknown, 19793 Unchecked, 36627.60ms Time] [2021-11-05 17:29:01,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78120 states. [2021-11-05 17:29:02,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78120 to 3201. [2021-11-05 17:29:02,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3200 states have (on average 1.4271875) internal successors, (4567), 3200 states have internal predecessors, (4567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4567 transitions. [2021-11-05 17:29:02,860 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4567 transitions. Word has length 178 [2021-11-05 17:29:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:29:02,860 INFO L470 AbstractCegarLoop]: Abstraction has 3201 states and 4567 transitions. [2021-11-05 17:29:02,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.515151515151516) internal successors, (149), 33 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4567 transitions. [2021-11-05 17:29:02,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-05 17:29:02,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:29:02,864 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:29:02,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-05 17:29:03,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:29:03,065 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:29:03,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:29:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1549375156, now seen corresponding path program 1 times [2021-11-05 17:29:03,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:29:03,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745753441] [2021-11-05 17:29:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:29:03,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:29:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:29:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-05 17:29:06,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:29:06,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745753441] [2021-11-05 17:29:06,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745753441] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:29:06,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141707235] [2021-11-05 17:29:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:29:06,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:29:06,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:29:06,263 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) [2021-11-05 17:29:06,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-05 17:29:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:29:09,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 144 conjunts are in the unsatisfiable core [2021-11-05 17:29:09,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:29:09,933 INFO L388 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 6 treesize of output 5 [2021-11-05 17:29:10,095 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 17:29:10,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-05 17:29:10,269 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-05 17:29:10,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-05 17:29:10,786 INFO L354 Elim1Store]: treesize reduction 144, result has 16.8 percent of original size [2021-11-05 17:29:10,786 INFO L388 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 48 treesize of output 64 [2021-11-05 17:29:11,509 INFO L354 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2021-11-05 17:29:11,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 71 [2021-11-05 17:29:11,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:29:11,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-11-05 17:29:11,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:29:11,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 17:29:11,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:29:11,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 17:29:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:11,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 17:29:12,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-05 17:29:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2021-11-05 17:29:12,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-05 17:29:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-05 17:29:12,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:12,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,388 INFO L354 Elim1Store]: treesize reduction 408, result has 15.2 percent of original size [2021-11-05 17:29:13,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 441 treesize of output 439 [2021-11-05 17:29:13,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,690 INFO L354 Elim1Store]: treesize reduction 408, result has 15.2 percent of original size [2021-11-05 17:29:13,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 437 treesize of output 435 [2021-11-05 17:29:13,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 379 [2021-11-05 17:29:13,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,811 INFO L354 Elim1Store]: treesize reduction 381, result has 17.9 percent of original size [2021-11-05 17:29:13,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 423 treesize of output 427 [2021-11-05 17:29:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:13,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2021-11-05 17:29:13,975 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-05 17:29:14,044 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-05 17:29:14,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 40 [2021-11-05 17:29:14,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 54 [2021-11-05 17:29:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,756 INFO L354 Elim1Store]: treesize reduction 324, result has 18.6 percent of original size [2021-11-05 17:29:14,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 case distinctions, treesize of input 326 treesize of output 333 [2021-11-05 17:29:14,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,865 INFO L354 Elim1Store]: treesize reduction 262, result has 14.9 percent of original size [2021-11-05 17:29:14,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 321 treesize of output 225 [2021-11-05 17:29:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 17:29:14,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 210 treesize of output 206 [2021-11-05 17:29:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:14,927 INFO L354 Elim1Store]: treesize reduction 188, result has 18.3 percent of original size [2021-11-05 17:29:14,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 187 [2021-11-05 17:29:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2021-11-05 17:29:15,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:15,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:15,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:15,502 INFO L354 Elim1Store]: treesize reduction 111, result has 7.5 percent of original size [2021-11-05 17:29:15,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 79 [2021-11-05 17:29:17,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,458 INFO L354 Elim1Store]: treesize reduction 139, result has 12.0 percent of original size [2021-11-05 17:29:17,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 86 treesize of output 116 [2021-11-05 17:29:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:17,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:29:17,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2021-11-05 17:29:17,631 INFO L354 Elim1Store]: treesize reduction 496, result has 12.4 percent of original size [2021-11-05 17:29:17,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 588 treesize of output 443 [2021-11-05 17:29:17,644 INFO L354 Elim1Store]: treesize reduction 232, result has 0.4 percent of original size [2021-11-05 17:29:17,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 569 treesize of output 326 [2021-11-05 17:29:17,703 INFO L354 Elim1Store]: treesize reduction 272, result has 12.3 percent of original size [2021-11-05 17:29:17,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 311 treesize of output 235 [2021-11-05 17:29:17,711 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-05 17:29:17,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 236 treesize of output 165 [2021-11-05 17:29:17,717 INFO L354 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2021-11-05 17:29:17,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 179 treesize of output 137 [2021-11-05 17:29:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-05 17:29:17,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:29:17,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141707235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:29:17,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:29:17,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [31] total 61 [2021-11-05 17:29:17,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410708863] [2021-11-05 17:29:17,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:29:17,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-05 17:29:17,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:29:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-05 17:29:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=3465, Unknown=1, NotChecked=0, Total=3660 [2021-11-05 17:29:17,808 INFO L87 Difference]: Start difference. First operand 3201 states and 4567 transitions. Second operand has 32 states, 32 states have (on average 4.65625) internal successors, (149), 32 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:20,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:25,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:27,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:30,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:31,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:37,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:39,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:42,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:48,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:49,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:51,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:53,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:55,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:57,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:02,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:14,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:24,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:26,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:28,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:30,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:32,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:34,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:37,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:41,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:44,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:46,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:49,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:51,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:54,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:56,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:57,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:30:59,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:01,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:02,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:05,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:07,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:09,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:15,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:19,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:21,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:23,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:27,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:28,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:30,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:32,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:34,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:39,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:41,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:44,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:46,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:48,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:55,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:57,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:31:59,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:01,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:03,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:05,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:10,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:12,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:15,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:21,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:22,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:43,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:46,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:52,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:32:55,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:12,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:16,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:20,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:28,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:30,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:32,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:34,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:38,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:42,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:44,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:46,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:48,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:50,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:52,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:54,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:58,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:33:59,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:03,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:08,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:10,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:11,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:13,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:15,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:18,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:21,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:23,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:25,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:28,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:34,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:35,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:38,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:40,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:41,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:43,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:45,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:47,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:34:54,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:01,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:03,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:05,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:29,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:35:30,367 INFO L93 Difference]: Finished difference Result 80060 states and 116811 transitions. [2021-11-05 17:35:30,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2021-11-05 17:35:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.65625) internal successors, (149), 32 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-05 17:35:30,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:35:30,503 INFO L225 Difference]: With dead ends: 80060 [2021-11-05 17:35:30,504 INFO L226 Difference]: Without dead ends: 80058 [2021-11-05 17:35:30,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19391 ImplicationChecksByTransitivity, 31157.60ms TimeCoverageRelationStatistics Valid=4208, Invalid=48894, Unknown=28, NotChecked=0, Total=53130 [2021-11-05 17:35:30,528 INFO L933 BasicCegarLoop]: 32843 mSDtfsCounter, 65436 mSDsluCounter, 578784 mSDsCounter, 0 mSdLazyCounter, 45101 mSolverCounterSat, 425 mSolverCounterUnsat, 55 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 306848.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65436 SdHoareTripleChecker+Valid, 611627 SdHoareTripleChecker+Invalid, 60090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 804.86ms SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 45101 IncrementalHoareTripleChecker+Invalid, 55 IncrementalHoareTripleChecker+Unknown, 14509 IncrementalHoareTripleChecker+Unchecked, 318019.26ms IncrementalHoareTripleChecker+Time [2021-11-05 17:35:30,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65436 Valid, 611627 Invalid, 60090 Unknown, 0 Unchecked, 804.86ms Time], IncrementalHoareTripleChecker [425 Valid, 45101 Invalid, 55 Unknown, 14509 Unchecked, 318019.26ms Time] [2021-11-05 17:35:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80058 states. [2021-11-05 17:35:31,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80058 to 3199. [2021-11-05 17:35:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 1.4271419637273295) internal successors, (4564), 3198 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:35:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4564 transitions. [2021-11-05 17:35:31,911 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4564 transitions. Word has length 178 [2021-11-05 17:35:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:35:31,911 INFO L470 AbstractCegarLoop]: Abstraction has 3199 states and 4564 transitions. [2021-11-05 17:35:31,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.65625) internal successors, (149), 32 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:35:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4564 transitions. [2021-11-05 17:35:31,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-05 17:35:31,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:35:31,917 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2021-11-05 17:35:31,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-05 17:35:32,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-05 17:35:32,132 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 17:35:32,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:35:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1295887021, now seen corresponding path program 1 times [2021-11-05 17:35:32,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:35:32,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868241607] [2021-11-05 17:35:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:35:32,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:35:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:35:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-05 17:35:33,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:35:33,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868241607] [2021-11-05 17:35:33,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868241607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:35:33,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:35:33,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 17:35:33,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23880740] [2021-11-05 17:35:33,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:35:33,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 17:35:33,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:35:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 17:35:33,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-05 17:35:33,410 INFO L87 Difference]: Start difference. First operand 3199 states and 4564 transitions. Second operand has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:35:35,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:37,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:40,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:42,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:43,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:48,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:52,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:35:56,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:05,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:08,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:12,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:14,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:20,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:21,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:36:27,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15