./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array6_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array6_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 21:50:22,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 21:50:22,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 21:50:22,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 21:50:22,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 21:50:22,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 21:50:22,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 21:50:22,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 21:50:22,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 21:50:22,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 21:50:22,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 21:50:22,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 21:50:22,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 21:50:22,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 21:50:22,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 21:50:22,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 21:50:22,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 21:50:22,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 21:50:22,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 21:50:22,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 21:50:22,182 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 21:50:22,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 21:50:22,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 21:50:22,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 21:50:22,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 21:50:22,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 21:50:22,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 21:50:22,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 21:50:22,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 21:50:22,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 21:50:22,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 21:50:22,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 21:50:22,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 21:50:22,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 21:50:22,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 21:50:22,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 21:50:22,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 21:50:22,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 21:50:22,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 21:50:22,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 21:50:22,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 21:50:22,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 21:50:22,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 21:50:22,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 21:50:22,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 21:50:22,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 21:50:22,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 21:50:22,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 21:50:22,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 21:50:22,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 21:50:22,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 21:50:22,222 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 21:50:22,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 21:50:22,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 21:50:22,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 21:50:22,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:50:22,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 21:50:22,225 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 21:50:22,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 21:50:22,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 21:50:22,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 [2022-07-20 21:50:22,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 21:50:22,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 21:50:22,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 21:50:22,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 21:50:22,450 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 21:50:22,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array6_pattern.c [2022-07-20 21:50:22,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae44a2b3/f9f044eb086d47ca83c009c2f908beca/FLAG6123237cb [2022-07-20 21:50:22,864 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 21:50:22,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c [2022-07-20 21:50:22,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae44a2b3/f9f044eb086d47ca83c009c2f908beca/FLAG6123237cb [2022-07-20 21:50:22,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae44a2b3/f9f044eb086d47ca83c009c2f908beca [2022-07-20 21:50:22,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 21:50:22,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 21:50:22,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 21:50:22,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 21:50:22,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 21:50:22,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:50:22" (1/1) ... [2022-07-20 21:50:22,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f408b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:22, skipping insertion in model container [2022-07-20 21:50:22,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:50:22" (1/1) ... [2022-07-20 21:50:22,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 21:50:22,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 21:50:23,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2022-07-20 21:50:23,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:50:23,117 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 21:50:23,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2022-07-20 21:50:23,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:50:23,164 INFO L208 MainTranslator]: Completed translation [2022-07-20 21:50:23,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23 WrapperNode [2022-07-20 21:50:23,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 21:50:23,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 21:50:23,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 21:50:23,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 21:50:23,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,203 INFO L137 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2022-07-20 21:50:23,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 21:50:23,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 21:50:23,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 21:50:23,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 21:50:23,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 21:50:23,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 21:50:23,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 21:50:23,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 21:50:23,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (1/1) ... [2022-07-20 21:50:23,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:50:23,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:23,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 21:50:23,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 21:50:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 21:50:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 21:50:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 21:50:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 21:50:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 21:50:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 21:50:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 21:50:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 21:50:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 21:50:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 21:50:23,357 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 21:50:23,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 21:50:23,518 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 21:50:23,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 21:50:23,522 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-20 21:50:23,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:50:23 BoogieIcfgContainer [2022-07-20 21:50:23,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 21:50:23,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 21:50:23,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 21:50:23,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 21:50:23,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:50:22" (1/3) ... [2022-07-20 21:50:23,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694fef28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:50:23, skipping insertion in model container [2022-07-20 21:50:23,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:23" (2/3) ... [2022-07-20 21:50:23,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694fef28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:50:23, skipping insertion in model container [2022-07-20 21:50:23,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:50:23" (3/3) ... [2022-07-20 21:50:23,529 INFO L111 eAbstractionObserver]: Analyzing ICFG array6_pattern.c [2022-07-20 21:50:23,540 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 21:50:23,540 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 21:50:23,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 21:50:23,577 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3af9501a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4cc87c03 [2022-07-20 21:50:23,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 21:50:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-20 21:50:23,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:23,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:23,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2022-07-20 21:50:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:23,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72777719] [2022-07-20 21:50:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:23,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:23,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72777719] [2022-07-20 21:50:23,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72777719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:23,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:23,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 21:50:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791352563] [2022-07-20 21:50:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:23,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 21:50:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 21:50:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:50:23,803 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:50:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:23,821 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2022-07-20 21:50:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 21:50:23,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-20 21:50:23,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:23,832 INFO L225 Difference]: With dead ends: 47 [2022-07-20 21:50:23,833 INFO L226 Difference]: Without dead ends: 21 [2022-07-20 21:50:23,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:50:23,845 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:23,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:50:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-20 21:50:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-20 21:50:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-07-20 21:50:23,878 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2022-07-20 21:50:23,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:23,878 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-07-20 21:50:23,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 21:50:23,879 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-07-20 21:50:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 21:50:23,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:23,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:23,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 21:50:23,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:23,883 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2022-07-20 21:50:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:23,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413752709] [2022-07-20 21:50:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:50:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:24,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413752709] [2022-07-20 21:50:24,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413752709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:24,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:24,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 21:50:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912462383] [2022-07-20 21:50:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:24,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 21:50:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 21:50:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 21:50:24,035 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:24,054 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-07-20 21:50:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 21:50:24,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-07-20 21:50:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:24,055 INFO L225 Difference]: With dead ends: 26 [2022-07-20 21:50:24,055 INFO L226 Difference]: Without dead ends: 22 [2022-07-20 21:50:24,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:50:24,057 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:24,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:50:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-20 21:50:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-20 21:50:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-20 21:50:24,061 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2022-07-20 21:50:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:24,062 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-20 21:50:24,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-20 21:50:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 21:50:24,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:24,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:24,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 21:50:24,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2022-07-20 21:50:24,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:24,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928132071] [2022-07-20 21:50:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:24,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:50:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:24,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:24,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928132071] [2022-07-20 21:50:24,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928132071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:24,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:24,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 21:50:24,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621483895] [2022-07-20 21:50:24,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:24,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 21:50:24,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:24,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 21:50:24,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:50:24,168 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:24,202 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-07-20 21:50:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 21:50:24,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-07-20 21:50:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:24,204 INFO L225 Difference]: With dead ends: 41 [2022-07-20 21:50:24,204 INFO L226 Difference]: Without dead ends: 25 [2022-07-20 21:50:24,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:50:24,205 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:24,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:50:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-20 21:50:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-07-20 21:50:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-07-20 21:50:24,214 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2022-07-20 21:50:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:24,214 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-07-20 21:50:24,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-07-20 21:50:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-20 21:50:24,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:24,216 INFO L195 NwaCegarLoop]: 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] [2022-07-20 21:50:24,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 21:50:24,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2022-07-20 21:50:24,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:24,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373857462] [2022-07-20 21:50:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:24,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:24,232 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:24,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879055204] [2022-07-20 21:50:24,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:24,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:24,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:24,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:24,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 21:50:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:24,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:50:24,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-20 21:50:24,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-20 21:50:24,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:24,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373857462] [2022-07-20 21:50:24,583 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:24,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879055204] [2022-07-20 21:50:24,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879055204] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:24,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:24,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 21:50:24,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966685498] [2022-07-20 21:50:24,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:24,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 21:50:24,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 21:50:24,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-20 21:50:24,586 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:50:24,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:24,797 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-07-20 21:50:24,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-20 21:50:24,797 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2022-07-20 21:50:24,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:24,801 INFO L225 Difference]: With dead ends: 71 [2022-07-20 21:50:24,801 INFO L226 Difference]: Without dead ends: 43 [2022-07-20 21:50:24,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2022-07-20 21:50:24,808 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 61 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:24,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 86 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:50:24,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-20 21:50:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2022-07-20 21:50:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-07-20 21:50:24,824 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 26 [2022-07-20 21:50:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:24,824 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-07-20 21:50:24,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:50:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-07-20 21:50:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 21:50:24,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:24,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:24,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:25,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:25,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:25,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1559224519, now seen corresponding path program 2 times [2022-07-20 21:50:25,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:25,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34318357] [2022-07-20 21:50:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:25,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:25,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:25,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454238284] [2022-07-20 21:50:25,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:50:25,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:25,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:25,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:25,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 21:50:25,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:50:25,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:25,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 21:50:25,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:25,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:25,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:25,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34318357] [2022-07-20 21:50:25,238 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:25,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454238284] [2022-07-20 21:50:25,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454238284] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:25,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:25,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-07-20 21:50:25,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060760060] [2022-07-20 21:50:25,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:25,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:50:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:25,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:50:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:50:25,240 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:50:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:25,354 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-07-20 21:50:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 21:50:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-07-20 21:50:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:25,355 INFO L225 Difference]: With dead ends: 39 [2022-07-20 21:50:25,355 INFO L226 Difference]: Without dead ends: 35 [2022-07-20 21:50:25,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-20 21:50:25,356 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 66 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:25,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 95 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:50:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-20 21:50:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-07-20 21:50:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-07-20 21:50:25,360 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 30 [2022-07-20 21:50:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:25,360 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-07-20 21:50:25,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:50:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-07-20 21:50:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-20 21:50:25,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:25,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:25,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:25,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:25,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 3 times [2022-07-20 21:50:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845589723] [2022-07-20 21:50:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:25,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:25,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015457591] [2022-07-20 21:50:25,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:50:25,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:25,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:25,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 21:50:25,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-07-20 21:50:25,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:25,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-20 21:50:25,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:25,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:50:25,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,777 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:50:25,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:50:25,790 INFO L390 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 33 treesize of output 32 [2022-07-20 21:50:25,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,854 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2022-07-20 21:50:25,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 22 [2022-07-20 21:50:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-07-20 21:50:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,939 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2022-07-20 21:50:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,963 INFO L356 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-07-20 21:50:25,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 34 [2022-07-20 21:50:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:25,988 INFO L356 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2022-07-20 21:50:25,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2022-07-20 21:50:26,504 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:50:26,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 334 treesize of output 217 [2022-07-20 21:50:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:50:26,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:50:26,559 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:50:26,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 176 treesize of output 219 [2022-07-20 21:50:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,595 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-07-20 21:50:26,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 160 [2022-07-20 21:50:26,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:26,652 INFO L356 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-07-20 21:50:26,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 52 treesize of output 82 [2022-07-20 21:50:26,717 INFO L390 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 0 case distinctions, treesize of input 38 treesize of output 11 [2022-07-20 21:50:26,953 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-20 21:50:26,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 177 treesize of output 160 [2022-07-20 21:50:26,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-07-20 21:50:27,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:27,076 INFO L356 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2022-07-20 21:50:27,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 48 [2022-07-20 21:50:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:28,974 INFO L356 Elim1Store]: treesize reduction 404, result has 34.5 percent of original size [2022-07-20 21:50:28,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 11 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 131 treesize of output 255 [2022-07-20 21:50:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:30,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:45,790 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_218 (Array Int Int)) (|v_ULTIMATE.start_main_~count~0#1_34| Int) (v_ArrVal_213 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_main_~count~0#1_34| 2)) (< (+ |v_ULTIMATE.start_main_~count~0#1_34| 1) c_~ARR_SIZE~0) (let ((.cse0 (let ((.cse5 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse3 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_218) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5) (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_213) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse6 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5)) (select .cse6 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5 4))))))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse4 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse5) (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse5 4)) (select .cse4 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse5)))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse3) |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse2 (* |v_ULTIMATE.start_main_~count~0#1_34| 4))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse3 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse3 (+ .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))))) (and (= (mod .cse0 2) 0) (= (div .cse0 2) 0))))) is different from false [2022-07-20 21:50:46,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:46,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845589723] [2022-07-20 21:50:46,154 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:46,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015457591] [2022-07-20 21:50:46,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015457591] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:50:46,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:50:46,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2022-07-20 21:50:46,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571303536] [2022-07-20 21:50:46,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:46,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 21:50:46,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:46,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 21:50:46,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=779, Unknown=8, NotChecked=58, Total=992 [2022-07-20 21:50:46,156 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:46,404 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2022-07-20 21:50:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-20 21:50:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-07-20 21:50:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:46,405 INFO L225 Difference]: With dead ends: 59 [2022-07-20 21:50:46,405 INFO L226 Difference]: Without dead ends: 55 [2022-07-20 21:50:46,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=176, Invalid=1010, Unknown=8, NotChecked=66, Total=1260 [2022-07-20 21:50:46,406 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:46,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 204 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 108 Unchecked, 0.0s Time] [2022-07-20 21:50:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-20 21:50:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2022-07-20 21:50:46,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:50:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-07-20 21:50:46,413 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 34 [2022-07-20 21:50:46,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:46,413 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-07-20 21:50:46,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:50:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-07-20 21:50:46,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-20 21:50:46,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:46,414 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:46,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:46,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:46,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1565541619, now seen corresponding path program 4 times [2022-07-20 21:50:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:46,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139299154] [2022-07-20 21:50:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:46,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:46,638 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792289788] [2022-07-20 21:50:46,639 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-20 21:50:46,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:46,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:46,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:46,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 21:50:46,721 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-20 21:50:46,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:46,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-20 21:50:46,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:46,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:46,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:46,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139299154] [2022-07-20 21:50:46,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:46,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792289788] [2022-07-20 21:50:46,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792289788] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:46,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:46,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-07-20 21:50:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408341983] [2022-07-20 21:50:46,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:46,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 21:50:46,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 21:50:46,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-07-20 21:50:46,859 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:50:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:47,007 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2022-07-20 21:50:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 21:50:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-07-20 21:50:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:47,009 INFO L225 Difference]: With dead ends: 87 [2022-07-20 21:50:47,009 INFO L226 Difference]: Without dead ends: 73 [2022-07-20 21:50:47,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-07-20 21:50:47,009 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 88 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:47,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 100 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:50:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-07-20 21:50:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2022-07-20 21:50:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 52 states have internal predecessors, (57), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-20 21:50:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2022-07-20 21:50:47,017 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 36 [2022-07-20 21:50:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:47,018 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2022-07-20 21:50:47,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:50:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2022-07-20 21:50:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-20 21:50:47,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:47,018 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:47,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:47,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:47,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash -956776499, now seen corresponding path program 5 times [2022-07-20 21:50:47,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:47,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099543922] [2022-07-20 21:50:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:47,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:47,242 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:47,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994433875] [2022-07-20 21:50:47,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-20 21:50:47,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:47,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:47,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 21:50:47,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-07-20 21:50:47,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:47,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-20 21:50:47,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:47,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099543922] [2022-07-20 21:50:47,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994433875] [2022-07-20 21:50:47,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994433875] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:47,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:47,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-07-20 21:50:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520494796] [2022-07-20 21:50:47,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:47,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 21:50:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 21:50:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-07-20 21:50:47,491 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:50:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:47,667 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2022-07-20 21:50:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 21:50:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-07-20 21:50:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:47,669 INFO L225 Difference]: With dead ends: 72 [2022-07-20 21:50:47,669 INFO L226 Difference]: Without dead ends: 68 [2022-07-20 21:50:47,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-07-20 21:50:47,669 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:47,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 149 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:50:47,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-20 21:50:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2022-07-20 21:50:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-20 21:50:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-07-20 21:50:47,677 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 36 [2022-07-20 21:50:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:47,677 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-07-20 21:50:47,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:50:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-07-20 21:50:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-20 21:50:47,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:47,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:47,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:47,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:47,878 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:47,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash -285980785, now seen corresponding path program 6 times [2022-07-20 21:50:47,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:47,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146167667] [2022-07-20 21:50:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:47,890 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:47,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333259271] [2022-07-20 21:50:47,890 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-20 21:50:47,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:47,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:47,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:50:47,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 21:50:48,106 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-07-20 21:50:48,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:48,108 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 93 conjunts are in the unsatisfiable core [2022-07-20 21:50:48,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:48,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:50:48,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,144 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:50:48,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:50:48,153 INFO L390 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 33 treesize of output 32 [2022-07-20 21:50:48,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,211 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-07-20 21:50:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 26 [2022-07-20 21:50:48,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2022-07-20 21:50:48,313 INFO L356 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2022-07-20 21:50:48,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 88 [2022-07-20 21:50:48,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:50:48,336 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:50:48,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 75 [2022-07-20 21:50:48,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-07-20 21:50:48,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 40 [2022-07-20 21:50:48,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:50:48,496 INFO L356 Elim1Store]: treesize reduction 40, result has 11.1 percent of original size [2022-07-20 21:50:48,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 140 [2022-07-20 21:50:48,509 INFO L356 Elim1Store]: treesize reduction 64, result has 7.2 percent of original size [2022-07-20 21:50:48,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 156 treesize of output 145 [2022-07-20 21:50:48,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 96 [2022-07-20 21:50:48,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:48,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 90 [2022-07-20 21:50:48,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-07-20 21:50:48,559 INFO L390 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 0 case distinctions, treesize of input 106 treesize of output 93 [2022-07-20 21:50:48,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-20 21:50:49,073 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:50:49,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 419 treesize of output 280 [2022-07-20 21:50:49,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:50:49,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:50:49,134 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:50:49,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 275 treesize of output 298 [2022-07-20 21:50:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,242 INFO L356 Elim1Store]: treesize reduction 307, result has 13.0 percent of original size [2022-07-20 21:50:49,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 171 treesize of output 224 [2022-07-20 21:50:49,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,330 INFO L356 Elim1Store]: treesize reduction 166, result has 21.7 percent of original size [2022-07-20 21:50:49,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 102 [2022-07-20 21:50:49,914 INFO L356 Elim1Store]: treesize reduction 41, result has 19.6 percent of original size [2022-07-20 21:50:49,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 165 [2022-07-20 21:50:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:49,960 INFO L356 Elim1Store]: treesize reduction 122, result has 20.3 percent of original size [2022-07-20 21:50:49,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 96 [2022-07-20 21:50:50,010 INFO L390 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 0 case distinctions, treesize of input 111 treesize of output 92 [2022-07-20 21:50:50,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-07-20 21:50:53,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:53,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:53,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:53,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:53,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:54,202 INFO L356 Elim1Store]: treesize reduction 656, result has 28.8 percent of original size [2022-07-20 21:50:54,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 12 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 170 treesize of output 346 [2022-07-20 21:50:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:55,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:51:12,354 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_457 (Array Int Int)) (|v_ULTIMATE.start_main_~count~0#1_75| Int) (v_ArrVal_455 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_main_~count~0#1_75| 3)) (= (let ((.cse4 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse2 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_455) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse4) (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_457) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse5 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse4)) (select .cse5 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse4 4))))))) (let ((.cse1 (* |v_ULTIMATE.start_main_~count~0#1_75| 4)) (.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse3 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse4) (+ (select .cse3 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse4 4)) (select .cse3 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse4)))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse2) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse2 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse1)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)))))) 0) (< (+ |v_ULTIMATE.start_main_~count~0#1_75| 1) c_~ARR_SIZE~0))) is different from false [2022-07-20 21:51:12,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:51:12,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146167667] [2022-07-20 21:51:12,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:51:12,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333259271] [2022-07-20 21:51:12,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333259271] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:51:12,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:51:12,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-07-20 21:51:12,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084973452] [2022-07-20 21:51:12,601 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:51:12,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-20 21:51:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:51:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-20 21:51:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=943, Unknown=10, NotChecked=64, Total=1190 [2022-07-20 21:51:12,603 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 21 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:51:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:51:13,351 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2022-07-20 21:51:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 21:51:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 21 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-20 21:51:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:51:13,353 INFO L225 Difference]: With dead ends: 91 [2022-07-20 21:51:13,353 INFO L226 Difference]: Without dead ends: 87 [2022-07-20 21:51:13,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=222, Invalid=1254, Unknown=10, NotChecked=74, Total=1560 [2022-07-20 21:51:13,354 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 21:51:13,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 216 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 221 Invalid, 0 Unknown, 119 Unchecked, 0.3s Time] [2022-07-20 21:51:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-20 21:51:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2022-07-20 21:51:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-20 21:51:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2022-07-20 21:51:13,364 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 38 [2022-07-20 21:51:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:51:13,365 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2022-07-20 21:51:13,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 21 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:51:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2022-07-20 21:51:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 21:51:13,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:51:13,366 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:51:13,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 21:51:13,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:13,584 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:51:13,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:51:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash 103605969, now seen corresponding path program 7 times [2022-07-20 21:51:13,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:51:13,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941236830] [2022-07-20 21:51:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:51:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:51:13,599 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:51:13,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679727976] [2022-07-20 21:51:13,601 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-20 21:51:13,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:13,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:51:13,603 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:51:13,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 21:51:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:51:13,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-20 21:51:13,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:51:13,783 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:51:13,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:51:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:51:13,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:51:13,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941236830] [2022-07-20 21:51:13,861 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:51:13,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679727976] [2022-07-20 21:51:13,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679727976] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:51:13,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:51:13,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-07-20 21:51:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514328277] [2022-07-20 21:51:13,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:51:13,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-20 21:51:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:51:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-20 21:51:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2022-07-20 21:51:13,863 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:51:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:51:14,105 INFO L93 Difference]: Finished difference Result 123 states and 129 transitions. [2022-07-20 21:51:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-20 21:51:14,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-07-20 21:51:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:51:14,107 INFO L225 Difference]: With dead ends: 123 [2022-07-20 21:51:14,107 INFO L226 Difference]: Without dead ends: 107 [2022-07-20 21:51:14,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2022-07-20 21:51:14,108 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 97 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:51:14,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 145 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:51:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-20 21:51:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2022-07-20 21:51:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 71 states have (on average 1.0985915492957747) internal successors, (78), 71 states have internal predecessors, (78), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-20 21:51:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2022-07-20 21:51:14,121 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 40 [2022-07-20 21:51:14,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:51:14,122 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2022-07-20 21:51:14,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:51:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2022-07-20 21:51:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 21:51:14,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:51:14,123 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:51:14,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-20 21:51:14,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:14,336 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:51:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:51:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1011334033, now seen corresponding path program 8 times [2022-07-20 21:51:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:51:14,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058212044] [2022-07-20 21:51:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:51:14,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:51:14,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:51:14,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805668476] [2022-07-20 21:51:14,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:51:14,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:14,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:51:14,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:51:14,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-20 21:51:14,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:51:14,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:51:14,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-20 21:51:14,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:51:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:51:14,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:51:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:51:14,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:51:14,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058212044] [2022-07-20 21:51:14,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:51:14,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805668476] [2022-07-20 21:51:14,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805668476] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:51:14,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:51:14,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-07-20 21:51:14,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482692333] [2022-07-20 21:51:14,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:51:14,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-20 21:51:14,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:51:14,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-20 21:51:14,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2022-07-20 21:51:14,625 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:51:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:51:14,861 INFO L93 Difference]: Finished difference Result 106 states and 110 transitions. [2022-07-20 21:51:14,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-20 21:51:14,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-07-20 21:51:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:51:14,862 INFO L225 Difference]: With dead ends: 106 [2022-07-20 21:51:14,862 INFO L226 Difference]: Without dead ends: 102 [2022-07-20 21:51:14,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2022-07-20 21:51:14,863 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 76 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:51:14,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 155 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:51:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-20 21:51:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 86. [2022-07-20 21:51:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 73 states have (on average 1.095890410958904) internal successors, (80), 73 states have internal predecessors, (80), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-20 21:51:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2022-07-20 21:51:14,875 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 40 [2022-07-20 21:51:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:51:14,875 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2022-07-20 21:51:14,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:51:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2022-07-20 21:51:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 21:51:14,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:51:14,876 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:51:14,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-20 21:51:15,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-20 21:51:15,084 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:51:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:51:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash -943992564, now seen corresponding path program 1 times [2022-07-20 21:51:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:51:15,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608743823] [2022-07-20 21:51:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:51:15,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:51:15,095 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:51:15,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565874160] [2022-07-20 21:51:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:51:15,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:15,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:51:15,097 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:51:15,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-20 21:51:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:51:15,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 94 conjunts are in the unsatisfiable core [2022-07-20 21:51:15,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:51:15,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:51:15,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,310 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:51:15,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:51:15,316 INFO L390 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 33 treesize of output 32 [2022-07-20 21:51:15,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2022-07-20 21:51:15,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,469 INFO L356 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2022-07-20 21:51:15,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 86 treesize of output 81 [2022-07-20 21:51:15,821 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:51:15,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 157 treesize of output 112 [2022-07-20 21:51:15,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 41 [2022-07-20 21:51:15,852 INFO L356 Elim1Store]: treesize reduction 50, result has 16.7 percent of original size [2022-07-20 21:51:15,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 106 [2022-07-20 21:51:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-07-20 21:51:15,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:15,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:15,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-07-20 21:51:15,903 INFO L390 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 0 case distinctions, treesize of input 97 treesize of output 80 [2022-07-20 21:51:15,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-07-20 21:51:16,395 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:51:16,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 247 [2022-07-20 21:51:16,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:51:16,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:51:16,449 INFO L356 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2022-07-20 21:51:16,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 221 [2022-07-20 21:51:16,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 124 [2022-07-20 21:51:16,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:16,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:16,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:16,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 51 [2022-07-20 21:51:16,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 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 118 treesize of output 108 [2022-07-20 21:51:16,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 98 [2022-07-20 21:51:17,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:17,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:17,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:17,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 26 [2022-07-20 21:51:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:51:17,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:51:17,533 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_733 (Array Int Int)) (v_ArrVal_732 (Array Int Int))) (= 0 (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse1 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_732) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_733) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3)) (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3 4))))))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse3)))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)))))))) is different from false [2022-07-20 21:51:17,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:51:17,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608743823] [2022-07-20 21:51:17,844 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:51:17,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565874160] [2022-07-20 21:51:17,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565874160] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:51:17,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:51:17,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-07-20 21:51:17,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699082850] [2022-07-20 21:51:17,845 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:51:17,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-20 21:51:17,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:51:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-20 21:51:17,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=874, Unknown=7, NotChecked=60, Total=1056 [2022-07-20 21:51:17,846 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 21 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:51:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:51:18,185 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2022-07-20 21:51:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 21:51:18,185 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 21 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2022-07-20 21:51:18,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:51:18,186 INFO L225 Difference]: With dead ends: 108 [2022-07-20 21:51:18,186 INFO L226 Difference]: Without dead ends: 96 [2022-07-20 21:51:18,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=140, Invalid=1117, Unknown=7, NotChecked=68, Total=1332 [2022-07-20 21:51:18,187 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:51:18,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 308 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 214 Unchecked, 0.2s Time] [2022-07-20 21:51:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-20 21:51:18,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-07-20 21:51:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 79 states have internal predecessors, (86), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-20 21:51:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2022-07-20 21:51:18,208 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 42 [2022-07-20 21:51:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:51:18,208 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2022-07-20 21:51:18,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 21 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:51:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2022-07-20 21:51:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 21:51:18,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:51:18,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:51:18,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-20 21:51:18,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:18,428 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:51:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:51:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1282630227, now seen corresponding path program 9 times [2022-07-20 21:51:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:51:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455038756] [2022-07-20 21:51:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:51:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:51:18,436 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:51:18,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021381303] [2022-07-20 21:51:18,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:51:18,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:51:18,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:51:18,438 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:51:18,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-20 21:51:18,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-07-20 21:51:18,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:51:18,745 WARN L261 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-20 21:51:18,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:51:18,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:51:18,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,771 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:51:18,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:51:18,778 INFO L390 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 33 treesize of output 32 [2022-07-20 21:51:18,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,864 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2022-07-20 21:51:18,867 INFO L390 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 0 case distinctions, treesize of input 50 treesize of output 48 [2022-07-20 21:51:18,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 33 treesize of output 37 [2022-07-20 21:51:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 33 [2022-07-20 21:51:18,967 INFO L356 Elim1Store]: treesize reduction 32, result has 13.5 percent of original size [2022-07-20 21:51:18,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 82 [2022-07-20 21:51:18,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 41 [2022-07-20 21:51:18,989 INFO L356 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2022-07-20 21:51:18,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 71 [2022-07-20 21:51:18,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:18,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2022-07-20 21:51:19,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 34 [2022-07-20 21:51:19,018 INFO L390 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 20 treesize of output 9 [2022-07-20 21:51:19,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-07-20 21:51:19,109 INFO L356 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2022-07-20 21:51:19,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 108 [2022-07-20 21:51:19,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:51:19,135 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:51:19,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 84 [2022-07-20 21:51:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,175 INFO L356 Elim1Store]: treesize reduction 90, result has 22.4 percent of original size [2022-07-20 21:51:19,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 50 [2022-07-20 21:51:19,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,211 INFO L356 Elim1Store]: treesize reduction 96, result has 21.3 percent of original size [2022-07-20 21:51:19,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 56 [2022-07-20 21:51:19,227 INFO L390 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 22 treesize of output 11 [2022-07-20 21:51:19,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:51:19,476 INFO L356 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-07-20 21:51:19,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 253 treesize of output 188 [2022-07-20 21:51:19,522 INFO L356 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2022-07-20 21:51:19,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 193 [2022-07-20 21:51:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,586 INFO L356 Elim1Store]: treesize reduction 133, result has 16.4 percent of original size [2022-07-20 21:51:19,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 137 [2022-07-20 21:51:19,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-07-20 21:51:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:19,632 INFO L356 Elim1Store]: treesize reduction 127, result has 17.0 percent of original size [2022-07-20 21:51:19,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 63 [2022-07-20 21:51:19,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:51:20,376 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:51:20,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 393 treesize of output 266 [2022-07-20 21:51:20,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:51:20,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:51:20,442 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:51:20,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 249 [2022-07-20 21:51:20,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,600 INFO L356 Elim1Store]: treesize reduction 220, result has 19.4 percent of original size [2022-07-20 21:51:20,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 69 treesize of output 125 [2022-07-20 21:51:20,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:20,744 INFO L356 Elim1Store]: treesize reduction 367, result has 12.0 percent of original size [2022-07-20 21:51:20,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 124 treesize of output 228 [2022-07-20 21:51:20,810 INFO L390 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 0 case distinctions, treesize of input 38 treesize of output 11 [2022-07-20 21:51:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:22,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:22,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:22,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:22,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:22,338 INFO L356 Elim1Store]: treesize reduction 104, result has 32.9 percent of original size [2022-07-20 21:51:22,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 112 [2022-07-20 21:51:22,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-07-20 21:52:15,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:15,953 INFO L356 Elim1Store]: treesize reduction 940, result has 33.9 percent of original size [2022-07-20 21:52:15,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 27 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 253 treesize of output 595 [2022-07-20 21:52:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:52:27,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:52:32,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:52:32,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455038756] [2022-07-20 21:52:32,727 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:52:32,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021381303] [2022-07-20 21:52:32,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021381303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:52:32,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:52:32,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-07-20 21:52:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457654683] [2022-07-20 21:52:32,727 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:52:32,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-20 21:52:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:52:32,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-20 21:52:32,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1580, Unknown=3, NotChecked=0, Total=1806 [2022-07-20 21:52:32,729 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:52:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:52:33,862 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2022-07-20 21:52:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-20 21:52:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-07-20 21:52:33,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:52:33,863 INFO L225 Difference]: With dead ends: 122 [2022-07-20 21:52:33,863 INFO L226 Difference]: Without dead ends: 118 [2022-07-20 21:52:33,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=279, Invalid=2070, Unknown=3, NotChecked=0, Total=2352 [2022-07-20 21:52:33,864 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:52:33,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 243 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 163 Unchecked, 0.2s Time] [2022-07-20 21:52:33,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-20 21:52:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2022-07-20 21:52:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.0909090909090908) internal successors, (96), 88 states have internal predecessors, (96), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-20 21:52:33,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2022-07-20 21:52:33,887 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 42 [2022-07-20 21:52:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:52:33,887 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2022-07-20 21:52:33,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:52:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2022-07-20 21:52:33,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 21:52:33,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:52:33,888 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:52:33,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-20 21:52:34,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-20 21:52:34,093 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:52:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:52:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash 5267605, now seen corresponding path program 10 times [2022-07-20 21:52:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:52:34,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029027617] [2022-07-20 21:52:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:52:34,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:52:34,113 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:52:34,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527565033] [2022-07-20 21:52:34,117 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-20 21:52:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:52:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:52:34,132 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:52:34,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-20 21:52:34,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-20 21:52:34,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:52:34,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-20 21:52:34,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:52:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:52:34,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:52:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:52:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:52:34,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029027617] [2022-07-20 21:52:34,495 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:52:34,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527565033] [2022-07-20 21:52:34,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527565033] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:52:34,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:52:34,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2022-07-20 21:52:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197771697] [2022-07-20 21:52:34,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:52:34,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-20 21:52:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:52:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-20 21:52:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-20 21:52:34,496 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:52:34,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:52:34,946 INFO L93 Difference]: Finished difference Result 189 states and 197 transitions. [2022-07-20 21:52:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-20 21:52:34,947 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2022-07-20 21:52:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:52:34,947 INFO L225 Difference]: With dead ends: 189 [2022-07-20 21:52:34,947 INFO L226 Difference]: Without dead ends: 171 [2022-07-20 21:52:34,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=375, Invalid=1107, Unknown=0, NotChecked=0, Total=1482 [2022-07-20 21:52:34,948 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 193 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:52:34,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 139 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:52:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-07-20 21:52:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 126. [2022-07-20 21:52:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 105 states have (on average 1.0952380952380953) internal successors, (115), 105 states have internal predecessors, (115), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-20 21:52:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 135 transitions. [2022-07-20 21:52:34,967 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 135 transitions. Word has length 44 [2022-07-20 21:52:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:52:34,968 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 135 transitions. [2022-07-20 21:52:34,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:52:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 135 transitions. [2022-07-20 21:52:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-20 21:52:34,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:52:34,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:52:34,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-20 21:52:35,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-20 21:52:35,185 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:52:35,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:52:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1257303952, now seen corresponding path program 2 times [2022-07-20 21:52:35,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:52:35,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814018502] [2022-07-20 21:52:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:52:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:52:35,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:52:35,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895699375] [2022-07-20 21:52:35,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:52:35,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:52:35,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:52:35,205 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:52:35,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-20 21:52:35,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:52:35,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:52:35,412 WARN L261 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 115 conjunts are in the unsatisfiable core [2022-07-20 21:52:35,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:52:35,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:52:35,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,443 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:52:35,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:52:35,449 INFO L390 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 33 treesize of output 32 [2022-07-20 21:52:35,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2022-07-20 21:52:35,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:35,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:35,619 INFO L356 Elim1Store]: treesize reduction 40, result has 25.9 percent of original size [2022-07-20 21:52:35,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 98 treesize of output 88 [2022-07-20 21:52:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:35,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:35,751 INFO L356 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2022-07-20 21:52:35,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 116 treesize of output 117 [2022-07-20 21:52:36,359 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:52:36,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 361 treesize of output 238 [2022-07-20 21:52:36,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:52:36,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:52:36,455 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:52:36,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 196 treesize of output 235 [2022-07-20 21:52:36,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,558 INFO L356 Elim1Store]: treesize reduction 209, result has 11.1 percent of original size [2022-07-20 21:52:36,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 108 treesize of output 191 [2022-07-20 21:52:36,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:36,641 INFO L356 Elim1Store]: treesize reduction 115, result has 18.4 percent of original size [2022-07-20 21:52:36,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 91 [2022-07-20 21:52:37,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 450 [2022-07-20 21:52:38,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:52:38,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:52:38,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:39,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:39,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:40,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:40,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:40,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:41,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:41,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:41,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:42,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:42,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:42,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:43,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:43,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:43,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:43,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:44,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:44,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:44,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:45,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:45,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:45,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:46,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:46,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:47,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:47,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:48,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-07-20 21:52:48,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:49,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:49,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:52:50,037 INFO L356 Elim1Store]: treesize reduction 88, result has 5.4 percent of original size [2022-07-20 21:52:50,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 676 treesize of output 559 [2022-07-20 21:52:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,060 INFO L356 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-07-20 21:52:50,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 575 treesize of output 546 [2022-07-20 21:52:50,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:52:50,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,180 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:52:50,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 546 treesize of output 547 [2022-07-20 21:52:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:50,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 534 treesize of output 520 [2022-07-20 21:52:51,009 INFO L356 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2022-07-20 21:52:51,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 750 treesize of output 864 [2022-07-20 21:52:51,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:51,517 INFO L356 Elim1Store]: treesize reduction 281, result has 19.9 percent of original size [2022-07-20 21:52:51,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 864 treesize of output 858 [2022-07-20 21:52:52,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:52,486 INFO L244 Elim1Store]: Index analysis took 116 ms [2022-07-20 21:52:52,914 INFO L356 Elim1Store]: treesize reduction 496, result has 11.9 percent of original size [2022-07-20 21:52:52,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 344 treesize of output 427 [2022-07-20 21:53:06,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 48 [2022-07-20 21:53:06,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:06,779 INFO L356 Elim1Store]: treesize reduction 188, result has 25.4 percent of original size [2022-07-20 21:53:06,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 249 treesize of output 261 [2022-07-20 21:53:13,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:13,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:14,090 INFO L356 Elim1Store]: treesize reduction 408, result has 36.3 percent of original size [2022-07-20 21:53:14,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 17 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 204 treesize of output 304 [2022-07-20 21:53:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:53:15,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:53:16,580 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1073 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse3)))))))) (let ((.cse1 (store (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_1073) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3)) (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3 4))))))) (let ((.cse0 (select (store .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8))))))) 0)) is different from false [2022-07-20 21:53:17,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:53:17,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814018502] [2022-07-20 21:53:17,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:53:17,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895699375] [2022-07-20 21:53:17,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895699375] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:53:17,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:53:17,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-07-20 21:53:17,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276179519] [2022-07-20 21:53:17,766 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:53:17,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-20 21:53:17,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:53:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-20 21:53:17,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1187, Unknown=6, NotChecked=70, Total=1406 [2022-07-20 21:53:17,767 INFO L87 Difference]: Start difference. First operand 126 states and 135 transitions. Second operand has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 24 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:53:18,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:53:18,459 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2022-07-20 21:53:18,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-20 21:53:18,460 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 24 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2022-07-20 21:53:18,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:53:18,463 INFO L225 Difference]: With dead ends: 152 [2022-07-20 21:53:18,463 INFO L226 Difference]: Without dead ends: 138 [2022-07-20 21:53:18,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=163, Invalid=1395, Unknown=6, NotChecked=76, Total=1640 [2022-07-20 21:53:18,464 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 26 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 234 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 21:53:18,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 307 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 173 Invalid, 0 Unknown, 234 Unchecked, 0.4s Time] [2022-07-20 21:53:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-07-20 21:53:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2022-07-20 21:53:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.09009009009009) internal successors, (121), 111 states have internal predecessors, (121), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-20 21:53:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 143 transitions. [2022-07-20 21:53:18,485 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 143 transitions. Word has length 46 [2022-07-20 21:53:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:53:18,486 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 143 transitions. [2022-07-20 21:53:18,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 24 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:53:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 143 transitions. [2022-07-20 21:53:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-20 21:53:18,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:53:18,489 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:53:18,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-20 21:53:18,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-20 21:53:18,692 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:53:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:53:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2146874601, now seen corresponding path program 11 times [2022-07-20 21:53:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:53:18,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828615882] [2022-07-20 21:53:18,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:53:18,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:53:18,701 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:53:18,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073235659] [2022-07-20 21:53:18,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-20 21:53:18,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:18,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:53:18,703 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:53:18,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-20 21:53:19,111 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-07-20 21:53:19,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:53:19,115 WARN L261 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 119 conjunts are in the unsatisfiable core [2022-07-20 21:53:19,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:53:19,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-07-20 21:53:19,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,146 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:53:19,148 INFO L390 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 0 case distinctions, treesize of input 34 treesize of output 34 [2022-07-20 21:53:19,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:53:19,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-07-20 21:53:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,207 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-07-20 21:53:19,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 26 [2022-07-20 21:53:19,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2022-07-20 21:53:19,315 INFO L356 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2022-07-20 21:53:19,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 102 [2022-07-20 21:53:19,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:53:19,348 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:53:19,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 82 [2022-07-20 21:53:19,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-07-20 21:53:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-07-20 21:53:19,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:53:19,594 INFO L356 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2022-07-20 21:53:19,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 157 treesize of output 132 [2022-07-20 21:53:19,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:53:19,619 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:53:19,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 96 [2022-07-20 21:53:19,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 62 [2022-07-20 21:53:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 68 [2022-07-20 21:53:19,670 INFO L390 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 22 treesize of output 11 [2022-07-20 21:53:19,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:53:19,931 INFO L356 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2022-07-20 21:53:19,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 191 treesize of output 162 [2022-07-20 21:53:19,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:53:19,977 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:53:19,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 110 [2022-07-20 21:53:19,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:19,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 81 [2022-07-20 21:53:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 89 [2022-07-20 21:53:20,065 INFO L390 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 22 treesize of output 11 [2022-07-20 21:53:20,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:53:20,350 INFO L356 Elim1Store]: treesize reduction 30, result has 14.3 percent of original size [2022-07-20 21:53:20,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 124 [2022-07-20 21:53:20,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-07-20 21:53:20,372 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-07-20 21:53:20,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 92 [2022-07-20 21:53:20,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 46 treesize of output 70 [2022-07-20 21:53:20,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:20,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 48 treesize of output 72 [2022-07-20 21:53:20,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-20 21:53:21,174 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:53:21,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 401 treesize of output 270 [2022-07-20 21:53:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:53:21,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:53:21,248 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:53:21,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 218 treesize of output 253 [2022-07-20 21:53:21,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,404 INFO L356 Elim1Store]: treesize reduction 410, result has 13.0 percent of original size [2022-07-20 21:53:21,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 126 treesize of output 236 [2022-07-20 21:53:21,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:21,536 INFO L356 Elim1Store]: treesize reduction 222, result has 21.6 percent of original size [2022-07-20 21:53:21,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 69 treesize of output 132 [2022-07-20 21:53:21,575 INFO L390 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 0 case distinctions, treesize of input 38 treesize of output 11 [2022-07-20 21:53:22,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-20 21:53:22,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-20 21:53:22,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-20 21:53:22,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-20 21:53:28,051 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-20 21:53:28,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 632 treesize of output 526 [2022-07-20 21:53:28,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 526 treesize of output 476 [2022-07-20 21:53:28,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 492 treesize of output 622 [2022-07-20 21:53:28,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 169 [2022-07-20 21:53:28,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 91 [2022-07-20 21:53:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:53:28,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:53:30,940 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1210 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse1 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_1210) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_1216) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3)) (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3 4))))))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse3)))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (select .cse1 (+ 16 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 20)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 20)) (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 16)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)))))) 0)) is different from false [2022-07-20 21:53:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:53:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828615882] [2022-07-20 21:53:31,274 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:53:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073235659] [2022-07-20 21:53:31,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073235659] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:53:31,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:53:31,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-07-20 21:53:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904733901] [2022-07-20 21:53:31,275 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:53:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-20 21:53:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:53:31,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-20 21:53:31,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1550, Unknown=1, NotChecked=80, Total=1806 [2022-07-20 21:53:31,276 INFO L87 Difference]: Start difference. First operand 134 states and 143 transitions. Second operand has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 27 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:53:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:53:32,637 INFO L93 Difference]: Finished difference Result 172 states and 186 transitions. [2022-07-20 21:53:32,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-20 21:53:32,637 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 27 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-07-20 21:53:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:53:32,638 INFO L225 Difference]: With dead ends: 172 [2022-07-20 21:53:32,638 INFO L226 Difference]: Without dead ends: 168 [2022-07-20 21:53:32,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=200, Invalid=1873, Unknown=1, NotChecked=88, Total=2162 [2022-07-20 21:53:32,639 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 36 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:53:32,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 275 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 382 Invalid, 0 Unknown, 145 Unchecked, 1.0s Time] [2022-07-20 21:53:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-07-20 21:53:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 147. [2022-07-20 21:53:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.098360655737705) internal successors, (134), 122 states have internal predecessors, (134), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-20 21:53:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2022-07-20 21:53:32,664 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 46 [2022-07-20 21:53:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:53:32,665 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2022-07-20 21:53:32,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 27 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 21:53:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2022-07-20 21:53:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 21:53:32,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:53:32,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:53:32,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-20 21:53:32,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-20 21:53:32,866 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:53:32,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:53:32,866 INFO L85 PathProgramCache]: Analyzing trace with hash 743102029, now seen corresponding path program 3 times [2022-07-20 21:53:32,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:53:32,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107027212] [2022-07-20 21:53:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:53:32,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:53:32,875 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:53:32,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389561788] [2022-07-20 21:53:32,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:53:32,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:32,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:53:32,877 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:53:32,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-20 21:53:33,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-07-20 21:53:33,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:53:33,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 107 conjunts are in the unsatisfiable core [2022-07-20 21:53:33,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:53:33,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:53:33,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,201 INFO L356 Elim1Store]: treesize reduction 29, result has 38.3 percent of original size [2022-07-20 21:53:33,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 59 [2022-07-20 21:53:33,219 INFO L356 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2022-07-20 21:53:33,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 43 treesize of output 58 [2022-07-20 21:53:33,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-07-20 21:53:33,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:53:33,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 26 [2022-07-20 21:53:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:33,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:33,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 103 [2022-07-20 21:53:33,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:33,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:33,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 18 [2022-07-20 21:53:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,495 INFO L356 Elim1Store]: treesize reduction 29, result has 38.3 percent of original size [2022-07-20 21:53:33,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 70 [2022-07-20 21:53:33,519 INFO L356 Elim1Store]: treesize reduction 25, result has 41.9 percent of original size [2022-07-20 21:53:33,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 48 treesize of output 61 [2022-07-20 21:53:33,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 22 [2022-07-20 21:53:33,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 22 [2022-07-20 21:53:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 29 [2022-07-20 21:53:33,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:33,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 32 [2022-07-20 21:53:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:34,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 98 [2022-07-20 21:53:34,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2022-07-20 21:53:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,332 INFO L356 Elim1Store]: treesize reduction 25, result has 41.9 percent of original size [2022-07-20 21:53:34,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 74 [2022-07-20 21:53:34,378 INFO L356 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2022-07-20 21:53:34,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 46 treesize of output 59 [2022-07-20 21:53:34,517 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-07-20 21:53:34,517 INFO L390 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 20 treesize of output 24 [2022-07-20 21:53:34,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,701 INFO L356 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-07-20 21:53:34,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 1 [2022-07-20 21:53:34,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:34,786 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-20 21:53:34,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 36 [2022-07-20 21:53:35,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:35,885 INFO L356 Elim1Store]: treesize reduction 105, result has 11.0 percent of original size [2022-07-20 21:53:35,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 125 treesize of output 109 [2022-07-20 21:53:38,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:38,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:38,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:39,086 INFO L356 Elim1Store]: treesize reduction 560, result has 11.0 percent of original size [2022-07-20 21:53:39,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 49 case distinctions, treesize of input 156 treesize of output 169 [2022-07-20 21:53:41,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:41,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:41,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:41,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:41,938 INFO L356 Elim1Store]: treesize reduction 782, result has 8.1 percent of original size [2022-07-20 21:53:41,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 70 case distinctions, treesize of input 176 treesize of output 195 [2022-07-20 21:53:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:50,579 INFO L356 Elim1Store]: treesize reduction 687, result has 36.0 percent of original size [2022-07-20 21:53:50,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 31 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 190 treesize of output 457 [2022-07-20 21:53:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 21:53:53,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:53:55,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:53:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107027212] [2022-07-20 21:53:55,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:53:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389561788] [2022-07-20 21:53:55,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389561788] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:53:55,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:53:55,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-07-20 21:53:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420166466] [2022-07-20 21:53:55,355 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-20 21:53:55,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-20 21:53:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:53:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-20 21:53:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1244, Unknown=0, NotChecked=0, Total=1482 [2022-07-20 21:53:55,356 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 23 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:53:55,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:53:55,940 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2022-07-20 21:53:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-20 21:53:55,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 23 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2022-07-20 21:53:55,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:53:55,941 INFO L225 Difference]: With dead ends: 158 [2022-07-20 21:53:55,941 INFO L226 Difference]: Without dead ends: 122 [2022-07-20 21:53:55,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=270, Invalid=1536, Unknown=0, NotChecked=0, Total=1806 [2022-07-20 21:53:55,945 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 126 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:53:55,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 276 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 126 Unchecked, 0.0s Time] [2022-07-20 21:53:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-07-20 21:53:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-07-20 21:53:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.0970873786407767) internal successors, (113), 103 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-20 21:53:55,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 131 transitions. [2022-07-20 21:53:55,967 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 131 transitions. Word has length 50 [2022-07-20 21:53:55,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:53:55,967 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 131 transitions. [2022-07-20 21:53:55,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 23 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:53:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2022-07-20 21:53:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 21:53:55,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:53:55,968 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:53:55,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-20 21:53:56,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:56,171 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:53:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:53:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1508956071, now seen corresponding path program 12 times [2022-07-20 21:53:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:53:56,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699961048] [2022-07-20 21:53:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:53:56,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:53:56,180 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:53:56,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135279689] [2022-07-20 21:53:56,180 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-20 21:53:56,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:53:56,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:53:56,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-20 21:53:56,520 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-07-20 21:53:56,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:53:56,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-20 21:53:56,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:53:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:53:56,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:53:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:53:56,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:53:56,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699961048] [2022-07-20 21:53:56,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:53:56,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135279689] [2022-07-20 21:53:56,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135279689] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:53:56,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:53:56,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2022-07-20 21:53:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601135631] [2022-07-20 21:53:56,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:53:56,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-20 21:53:56,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:53:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-20 21:53:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2022-07-20 21:53:56,862 INFO L87 Difference]: Start difference. First operand 122 states and 131 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:53:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:53:57,516 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2022-07-20 21:53:57,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-20 21:53:57,517 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-20 21:53:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:53:57,518 INFO L225 Difference]: With dead ends: 205 [2022-07-20 21:53:57,518 INFO L226 Difference]: Without dead ends: 185 [2022-07-20 21:53:57,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=482, Invalid=1498, Unknown=0, NotChecked=0, Total=1980 [2022-07-20 21:53:57,519 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 182 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:53:57,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 191 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:53:57,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-20 21:53:57,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 139. [2022-07-20 21:53:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.0932203389830508) internal successors, (129), 118 states have internal predecessors, (129), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-20 21:53:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2022-07-20 21:53:57,545 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 48 [2022-07-20 21:53:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:53:57,545 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2022-07-20 21:53:57,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:53:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2022-07-20 21:53:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 21:53:57,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:53:57,546 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:53:57,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-20 21:53:57,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-20 21:53:57,749 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:53:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:53:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash -181297895, now seen corresponding path program 13 times [2022-07-20 21:53:57,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:53:57,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308687503] [2022-07-20 21:53:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:53:57,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:53:57,757 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:53:57,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694918026] [2022-07-20 21:53:57,758 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-20 21:53:57,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:57,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:53:57,759 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:53:57,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-20 21:53:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:53:57,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-20 21:53:57,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:53:58,001 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:53:58,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:53:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:53:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:53:58,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308687503] [2022-07-20 21:53:58,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:53:58,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694918026] [2022-07-20 21:53:58,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694918026] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:53:58,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:53:58,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2022-07-20 21:53:58,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714558600] [2022-07-20 21:53:58,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:53:58,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-20 21:53:58,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:53:58,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-20 21:53:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2022-07-20 21:53:58,195 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:53:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:53:58,735 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2022-07-20 21:53:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 21:53:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-20 21:53:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:53:58,737 INFO L225 Difference]: With dead ends: 180 [2022-07-20 21:53:58,737 INFO L226 Difference]: Without dead ends: 176 [2022-07-20 21:53:58,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=359, Invalid=1123, Unknown=0, NotChecked=0, Total=1482 [2022-07-20 21:53:58,738 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 105 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 21:53:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 271 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 21:53:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-20 21:53:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 132. [2022-07-20 21:53:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.0884955752212389) internal successors, (123), 113 states have internal predecessors, (123), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-20 21:53:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 141 transitions. [2022-07-20 21:53:58,768 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 141 transitions. Word has length 48 [2022-07-20 21:53:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:53:58,768 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 141 transitions. [2022-07-20 21:53:58,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:53:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2022-07-20 21:53:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 21:53:58,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:53:58,769 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:53:58,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-20 21:53:58,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:58,971 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:53:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:53:58,972 INFO L85 PathProgramCache]: Analyzing trace with hash 570125332, now seen corresponding path program 4 times [2022-07-20 21:53:58,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:53:58,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807618897] [2022-07-20 21:53:58,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:53:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:53:58,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:53:58,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911450623] [2022-07-20 21:53:58,981 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-20 21:53:58,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:53:58,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:53:58,982 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:53:58,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-20 21:53:59,509 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-20 21:53:59,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:53:59,512 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 132 conjunts are in the unsatisfiable core [2022-07-20 21:53:59,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:53:59,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-20 21:53:59,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,551 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2022-07-20 21:53:59,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-07-20 21:53:59,559 INFO L390 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 33 treesize of output 32 [2022-07-20 21:53:59,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2022-07-20 21:53:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:59,699 INFO L356 Elim1Store]: treesize reduction 40, result has 25.9 percent of original size [2022-07-20 21:53:59,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 84 treesize of output 74 [2022-07-20 21:53:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:59,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:59,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:53:59,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:53:59,867 INFO L356 Elim1Store]: treesize reduction 48, result has 22.6 percent of original size [2022-07-20 21:53:59,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 117 treesize of output 113 [2022-07-20 21:54:00,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:00,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:00,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:00,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:00,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:00,173 INFO L356 Elim1Store]: treesize reduction 56, result has 20.0 percent of original size [2022-07-20 21:54:00,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 230 treesize of output 154 [2022-07-20 21:54:01,335 INFO L356 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-07-20 21:54:01,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 461 treesize of output 312 [2022-07-20 21:54:01,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-07-20 21:54:01,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2022-07-20 21:54:01,467 INFO L356 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2022-07-20 21:54:01,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 315 treesize of output 330 [2022-07-20 21:54:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,610 INFO L356 Elim1Store]: treesize reduction 302, result has 14.4 percent of original size [2022-07-20 21:54:01,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 203 treesize of output 263 [2022-07-20 21:54:01,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:01,712 INFO L356 Elim1Store]: treesize reduction 166, result has 21.7 percent of original size [2022-07-20 21:54:01,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 114 [2022-07-20 21:54:03,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 628 treesize of output 676 [2022-07-20 21:54:03,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:04,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:04,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:05,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:06,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:06,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-07-20 21:54:06,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-07-20 21:54:07,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-07-20 21:54:08,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:08,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:10,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:10,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:10,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:11,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-07-20 21:54:11,728 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-20 21:54:11,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 841 treesize of output 768 [2022-07-20 21:54:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:18,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:18,257 INFO L356 Elim1Store]: treesize reduction 51, result has 50.0 percent of original size [2022-07-20 21:54:18,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 189 [2022-07-20 21:54:19,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:19,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,139 INFO L356 Elim1Store]: treesize reduction 52, result has 11.9 percent of original size [2022-07-20 21:54:19,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 192 treesize of output 170 [2022-07-20 21:54:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:19,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:19,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:54:19,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:54:19,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 136