./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/eqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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-fpi/eqn1f.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 2b20794e96be04a5a2c7abfe0708768d310e0c0e 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 19:04:37,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 19:04:37,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 19:04:37,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 19:04:37,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 19:04:37,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 19:04:37,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 19:04:37,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 19:04:37,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 19:04:37,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 19:04:37,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 19:04:37,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 19:04:37,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 19:04:37,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 19:04:37,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 19:04:37,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 19:04:37,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 19:04:37,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 19:04:37,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 19:04:37,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 19:04:37,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 19:04:37,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 19:04:37,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 19:04:37,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 19:04:37,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 19:04:37,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 19:04:37,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 19:04:37,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 19:04:37,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 19:04:37,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 19:04:37,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 19:04:37,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 19:04:37,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 19:04:37,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 19:04:37,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 19:04:37,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 19:04:37,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 19:04:37,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 19:04:37,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 19:04:37,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 19:04:37,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 19:04:37,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 19:04:37,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 19:04:37,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 19:04:37,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 19:04:37,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 19:04:37,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 19:04:37,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 19:04:37,206 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 19:04:37,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 19:04:37,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 19:04:37,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 19:04:37,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 19:04:37,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 19:04:37,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 19:04:37,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 19:04:37,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:04:37,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 19:04:37,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 19:04:37,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 19:04:37,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 19:04:37,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 19:04:37,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b20794e96be04a5a2c7abfe0708768d310e0c0e [2021-08-25 19:04:37,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 19:04:37,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 19:04:37,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 19:04:37,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 19:04:37,557 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 19:04:37,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/eqn1f.c [2021-08-25 19:04:37,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d677497f/a339c8af3f624775aac6913a93d3085d/FLAG75f52ebd5 [2021-08-25 19:04:37,944 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 19:04:37,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn1f.c [2021-08-25 19:04:37,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d677497f/a339c8af3f624775aac6913a93d3085d/FLAG75f52ebd5 [2021-08-25 19:04:37,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d677497f/a339c8af3f624775aac6913a93d3085d [2021-08-25 19:04:37,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 19:04:37,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 19:04:37,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 19:04:37,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 19:04:37,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 19:04:37,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:04:37" (1/1) ... [2021-08-25 19:04:37,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507e5641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:37, skipping insertion in model container [2021-08-25 19:04:37,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:04:37" (1/1) ... [2021-08-25 19:04:37,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 19:04:37,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 19:04:38,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-08-25 19:04:38,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:04:38,099 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 19:04:38,107 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-08-25 19:04:38,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:04:38,151 INFO L208 MainTranslator]: Completed translation [2021-08-25 19:04:38,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38 WrapperNode [2021-08-25 19:04:38,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 19:04:38,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 19:04:38,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 19:04:38,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 19:04:38,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 19:04:38,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 19:04:38,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 19:04:38,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 19:04:38,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 19:04:38,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 19:04:38,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 19:04:38,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 19:04:38,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (1/1) ... [2021-08-25 19:04:38,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:04:38,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:38,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 19:04:38,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 19:04:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 19:04:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 19:04:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-25 19:04:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-25 19:04:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 19:04:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 19:04:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-25 19:04:38,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 19:04:38,550 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-08-25 19:04:38,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:04:38 BoogieIcfgContainer [2021-08-25 19:04:38,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 19:04:38,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 19:04:38,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 19:04:38,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 19:04:38,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:04:37" (1/3) ... [2021-08-25 19:04:38,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eba0a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:04:38, skipping insertion in model container [2021-08-25 19:04:38,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:04:38" (2/3) ... [2021-08-25 19:04:38,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eba0a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:04:38, skipping insertion in model container [2021-08-25 19:04:38,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:04:38" (3/3) ... [2021-08-25 19:04:38,556 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn1f.c [2021-08-25 19:04:38,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 19:04:38,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 19:04:38,611 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 19:04:38,623 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 19:04:38,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 19:04:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-25 19:04:38,638 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:38,638 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:38,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:38,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:38,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-08-25 19:04:38,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:38,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368504742] [2021-08-25 19:04:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:38,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:38,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:38,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368504742] [2021-08-25 19:04:38,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368504742] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:04:38,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:04:38,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 19:04:38,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630173321] [2021-08-25 19:04:38,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 19:04:38,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 19:04:38,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:04:38,797 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:38,825 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-08-25 19:04:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 19:04:38,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-25 19:04:38,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:38,830 INFO L225 Difference]: With dead ends: 38 [2021-08-25 19:04:38,831 INFO L226 Difference]: Without dead ends: 17 [2021-08-25 19:04:38,832 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:04:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-25 19:04:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-08-25 19:04:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-08-25 19:04:38,861 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-08-25 19:04:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:38,861 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-08-25 19:04:38,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-08-25 19:04:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-25 19:04:38,862 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:38,862 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:38,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 19:04:38,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:38,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-08-25 19:04:38,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:38,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716498895] [2021-08-25 19:04:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:38,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:38,901 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:38,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509389989] [2021-08-25 19:04:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:38,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:38,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:38,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:38,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 19:04:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:39,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-25 19:04:39,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:39,112 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-08-25 19:04:39,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-08-25 19:04:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:39,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:39,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716498895] [2021-08-25 19:04:39,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:39,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509389989] [2021-08-25 19:04:39,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509389989] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:04:39,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:04:39,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-25 19:04:39,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057677106] [2021-08-25 19:04:39,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 19:04:39,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 19:04:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 19:04:39,296 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:39,372 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-08-25 19:04:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-25 19:04:39,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-25 19:04:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:39,373 INFO L225 Difference]: With dead ends: 34 [2021-08-25 19:04:39,374 INFO L226 Difference]: Without dead ends: 32 [2021-08-25 19:04:39,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 48.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 19:04:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-08-25 19:04:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-08-25 19:04:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-08-25 19:04:39,378 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-08-25 19:04:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:39,378 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-08-25 19:04:39,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-08-25 19:04:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-25 19:04:39,379 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:39,379 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:39,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:39,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:39,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2021-08-25 19:04:39,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:39,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938797710] [2021-08-25 19:04:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:39,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:39,610 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:39,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724982229] [2021-08-25 19:04:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:39,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:39,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:39,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:39,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 19:04:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:39,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 19:04:39,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:39,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:39,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938797710] [2021-08-25 19:04:39,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:39,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724982229] [2021-08-25 19:04:39,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724982229] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:04:39,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:04:39,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-25 19:04:39,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421184178] [2021-08-25 19:04:39,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 19:04:39,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:39,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 19:04:39,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 19:04:39,803 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:39,872 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-08-25 19:04:39,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-25 19:04:39,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-25 19:04:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:39,874 INFO L225 Difference]: With dead ends: 49 [2021-08-25 19:04:39,874 INFO L226 Difference]: Without dead ends: 40 [2021-08-25 19:04:39,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 19:04:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-25 19:04:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2021-08-25 19:04:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-08-25 19:04:39,878 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-08-25 19:04:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:39,878 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-08-25 19:04:39,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:39,878 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-08-25 19:04:39,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-25 19:04:39,879 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:39,879 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:39,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:40,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-25 19:04:40,095 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:40,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:40,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2021-08-25 19:04:40,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:40,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206353782] [2021-08-25 19:04:40,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:40,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:40,107 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:40,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837247627] [2021-08-25 19:04:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:40,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:40,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:40,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:40,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 19:04:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:40,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 19:04:40,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:40,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:40,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206353782] [2021-08-25 19:04:40,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:40,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837247627] [2021-08-25 19:04:40,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837247627] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:40,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:40,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-08-25 19:04:40,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975850122] [2021-08-25 19:04:40,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 19:04:40,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:40,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 19:04:40,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 19:04:40,288 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:40,357 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-08-25 19:04:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 19:04:40,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-25 19:04:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:40,359 INFO L225 Difference]: With dead ends: 44 [2021-08-25 19:04:40,359 INFO L226 Difference]: Without dead ends: 37 [2021-08-25 19:04:40,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 19:04:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-25 19:04:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2021-08-25 19:04:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-08-25 19:04:40,363 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2021-08-25 19:04:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:40,363 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-08-25 19:04:40,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-08-25 19:04:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-25 19:04:40,364 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:40,367 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:40,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:40,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:40,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:40,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2021-08-25 19:04:40,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:40,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513750396] [2021-08-25 19:04:40,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:40,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:40,594 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:40,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322031046] [2021-08-25 19:04:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:40,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:40,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:40,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:40,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 19:04:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:40,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-25 19:04:40,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:40,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:40,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513750396] [2021-08-25 19:04:40,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:40,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322031046] [2021-08-25 19:04:40,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322031046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:04:40,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:04:40,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-25 19:04:40,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387966443] [2021-08-25 19:04:40,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-25 19:04:40,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:40,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-25 19:04:40,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 19:04:40,780 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:40,821 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-08-25 19:04:40,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-25 19:04:40,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-25 19:04:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:40,822 INFO L225 Difference]: With dead ends: 41 [2021-08-25 19:04:40,822 INFO L226 Difference]: Without dead ends: 27 [2021-08-25 19:04:40,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-08-25 19:04:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-25 19:04:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-08-25 19:04:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-08-25 19:04:40,825 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-08-25 19:04:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:40,825 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-08-25 19:04:40,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-08-25 19:04:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-25 19:04:40,825 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:40,826 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:40,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:41,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:41,043 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:41,044 INFO L82 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2021-08-25 19:04:41,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:41,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25433115] [2021-08-25 19:04:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:41,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:41,053 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:41,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096659551] [2021-08-25 19:04:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:41,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:41,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:41,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:41,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 19:04:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:41,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-25 19:04:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:41,140 INFO L388 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 [2021-08-25 19:04:41,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-08-25 19:04:41,200 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-08-25 19:04:41,201 INFO L388 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 41 treesize of output 52 [2021-08-25 19:04:41,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:41,415 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-08-25 19:04:41,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 70 [2021-08-25 19:04:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:41,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:41,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25433115] [2021-08-25 19:04:41,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:41,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096659551] [2021-08-25 19:04:41,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096659551] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:41,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:41,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-08-25 19:04:41,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593153588] [2021-08-25 19:04:41,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-25 19:04:41,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-25 19:04:41,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-25 19:04:41,852 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:42,038 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-08-25 19:04:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-25 19:04:42,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-25 19:04:42,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:42,039 INFO L225 Difference]: With dead ends: 44 [2021-08-25 19:04:42,039 INFO L226 Difference]: Without dead ends: 42 [2021-08-25 19:04:42,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 172.3ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-08-25 19:04:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-25 19:04:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2021-08-25 19:04:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-08-25 19:04:42,042 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2021-08-25 19:04:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:42,043 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-08-25 19:04:42,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-08-25 19:04:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-25 19:04:42,043 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:42,043 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:42,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:42,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:42,253 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:42,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1267903976, now seen corresponding path program 2 times [2021-08-25 19:04:42,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:42,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561190498] [2021-08-25 19:04:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:42,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:42,264 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:42,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120302123] [2021-08-25 19:04:42,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-25 19:04:42,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:42,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:42,265 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:42,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-25 19:04:42,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-25 19:04:42,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:42,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-25 19:04:42,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:42,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:42,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561190498] [2021-08-25 19:04:42,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:42,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120302123] [2021-08-25 19:04:42,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120302123] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:42,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:42,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-08-25 19:04:42,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856512240] [2021-08-25 19:04:42,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 19:04:42,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:42,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 19:04:42,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 19:04:42,426 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:42,487 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2021-08-25 19:04:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-25 19:04:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-25 19:04:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:42,488 INFO L225 Difference]: With dead ends: 61 [2021-08-25 19:04:42,488 INFO L226 Difference]: Without dead ends: 52 [2021-08-25 19:04:42,489 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-25 19:04:42,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-25 19:04:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 28. [2021-08-25 19:04:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-08-25 19:04:42,492 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 18 [2021-08-25 19:04:42,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:42,493 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-08-25 19:04:42,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-08-25 19:04:42,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-25 19:04:42,493 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:42,493 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:42,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:42,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:42,709 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:42,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:42,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 3 times [2021-08-25 19:04:42,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:42,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506207024] [2021-08-25 19:04:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:42,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:42,719 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:42,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766209992] [2021-08-25 19:04:42,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-25 19:04:42,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:42,720 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:42,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-25 19:04:42,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-25 19:04:42,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:42,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-25 19:04:42,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:42,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:42,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506207024] [2021-08-25 19:04:42,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:42,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766209992] [2021-08-25 19:04:42,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766209992] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:42,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:42,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-08-25 19:04:42,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328388572] [2021-08-25 19:04:42,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 19:04:42,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 19:04:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 19:04:42,884 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:42,941 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2021-08-25 19:04:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-25 19:04:42,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-25 19:04:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:42,942 INFO L225 Difference]: With dead ends: 56 [2021-08-25 19:04:42,942 INFO L226 Difference]: Without dead ends: 49 [2021-08-25 19:04:42,943 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-25 19:04:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-25 19:04:42,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 30. [2021-08-25 19:04:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-08-25 19:04:42,946 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 18 [2021-08-25 19:04:42,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:42,946 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-08-25 19:04:42,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:42,946 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-08-25 19:04:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-25 19:04:42,947 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:42,947 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:42,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:43,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:43,160 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2021-08-25 19:04:43,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:43,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66421179] [2021-08-25 19:04:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:43,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:43,169 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:43,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170457082] [2021-08-25 19:04:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:43,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:43,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:43,171 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:04:43,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-25 19:04:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:04:43,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-25 19:04:43,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:43,277 INFO L388 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 [2021-08-25 19:04:43,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-08-25 19:04:43,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:43,312 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-25 19:04:43,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2021-08-25 19:04:43,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:43,407 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-08-25 19:04:43,407 INFO L388 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 4 case distinctions, treesize of input 51 treesize of output 44 [2021-08-25 19:04:43,595 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-08-25 19:04:43,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 38 [2021-08-25 19:04:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:43,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:43,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66421179] [2021-08-25 19:04:43,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:43,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170457082] [2021-08-25 19:04:43,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170457082] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:43,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:43,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-08-25 19:04:43,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999763581] [2021-08-25 19:04:43,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 19:04:43,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:43,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 19:04:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-25 19:04:43,609 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:43,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:43,818 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-08-25 19:04:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-25 19:04:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-25 19:04:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:43,819 INFO L225 Difference]: With dead ends: 45 [2021-08-25 19:04:43,819 INFO L226 Difference]: Without dead ends: 43 [2021-08-25 19:04:43,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 223.5ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-08-25 19:04:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-25 19:04:43,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2021-08-25 19:04:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-08-25 19:04:43,822 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2021-08-25 19:04:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:43,823 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-08-25 19:04:43,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-08-25 19:04:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-25 19:04:43,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:43,823 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:43,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:44,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-25 19:04:44,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:44,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:44,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1786143722, now seen corresponding path program 4 times [2021-08-25 19:04:44,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:44,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745143184] [2021-08-25 19:04:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:44,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:44,042 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:44,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667970300] [2021-08-25 19:04:44,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-25 19:04:44,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:44,044 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) [2021-08-25 19:04:44,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-25 19:04:44,205 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-25 19:04:44,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:44,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-25 19:04:44,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:44,229 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-08-25 19:04:44,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-08-25 19:04:44,237 INFO L388 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 [2021-08-25 19:04:44,271 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-08-25 19:04:44,271 INFO L388 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 41 treesize of output 52 [2021-08-25 19:04:44,397 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-08-25 19:04:44,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-08-25 19:04:44,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:44,753 INFO L354 Elim1Store]: treesize reduction 144, result has 0.7 percent of original size [2021-08-25 19:04:44,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 101 [2021-08-25 19:04:44,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:45,051 INFO L354 Elim1Store]: treesize reduction 752, result has 9.6 percent of original size [2021-08-25 19:04:45,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 129 treesize of output 131 [2021-08-25 19:04:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:47,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:47,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745143184] [2021-08-25 19:04:47,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:47,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667970300] [2021-08-25 19:04:47,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667970300] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:47,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:47,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-08-25 19:04:47,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87781462] [2021-08-25 19:04:47,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-25 19:04:47,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-25 19:04:47,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-08-25 19:04:47,317 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:50,247 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-08-25 19:04:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-25 19:04:50,247 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-25 19:04:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:50,248 INFO L225 Difference]: With dead ends: 69 [2021-08-25 19:04:50,248 INFO L226 Difference]: Without dead ends: 67 [2021-08-25 19:04:50,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 597.6ms TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-08-25 19:04:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-08-25 19:04:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 43. [2021-08-25 19:04:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-08-25 19:04:50,253 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 20 [2021-08-25 19:04:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:50,253 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-08-25 19:04:50,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-08-25 19:04:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-25 19:04:50,254 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:50,254 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:50,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:50,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-25 19:04:50,463 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1598333292, now seen corresponding path program 5 times [2021-08-25 19:04:50,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:50,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217189252] [2021-08-25 19:04:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:50,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:50,474 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:50,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879244506] [2021-08-25 19:04:50,475 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-25 19:04:50,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:50,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:50,501 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) [2021-08-25 19:04:50,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-25 19:04:50,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-08-25 19:04:50,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:50,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-25 19:04:50,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:50,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:50,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217189252] [2021-08-25 19:04:50,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:50,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879244506] [2021-08-25 19:04:50,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879244506] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:50,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:50,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-08-25 19:04:50,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109341018] [2021-08-25 19:04:50,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 19:04:50,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 19:04:50,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-25 19:04:50,783 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:50,884 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2021-08-25 19:04:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-25 19:04:50,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-25 19:04:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:50,885 INFO L225 Difference]: With dead ends: 82 [2021-08-25 19:04:50,885 INFO L226 Difference]: Without dead ends: 75 [2021-08-25 19:04:50,886 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 48.5ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-08-25 19:04:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-08-25 19:04:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 45. [2021-08-25 19:04:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2021-08-25 19:04:50,894 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 22 [2021-08-25 19:04:50,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:50,894 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2021-08-25 19:04:50,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2021-08-25 19:04:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 19:04:50,895 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:50,895 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:50,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:51,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-25 19:04:51,112 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1197174726, now seen corresponding path program 2 times [2021-08-25 19:04:51,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:51,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329079499] [2021-08-25 19:04:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:51,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:51,119 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:51,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263519430] [2021-08-25 19:04:51,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-25 19:04:51,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:51,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:51,123 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) [2021-08-25 19:04:51,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-25 19:04:51,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-25 19:04:51,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:51,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-25 19:04:51,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-25 19:04:51,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:51,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329079499] [2021-08-25 19:04:51,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:51,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263519430] [2021-08-25 19:04:51,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263519430] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:51,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:51,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-08-25 19:04:51,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407225523] [2021-08-25 19:04:51,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-25 19:04:51,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:51,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-25 19:04:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 19:04:51,393 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:51,473 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-08-25 19:04:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-25 19:04:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-25 19:04:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:51,473 INFO L225 Difference]: With dead ends: 69 [2021-08-25 19:04:51,474 INFO L226 Difference]: Without dead ends: 49 [2021-08-25 19:04:51,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 51.4ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-08-25 19:04:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-25 19:04:51,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2021-08-25 19:04:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-08-25 19:04:51,477 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2021-08-25 19:04:51,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:51,477 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-08-25 19:04:51,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:51,477 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-08-25 19:04:51,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 19:04:51,478 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:04:51,478 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:04:51,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:51,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-25 19:04:51,695 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:04:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:04:51,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1232945932, now seen corresponding path program 3 times [2021-08-25 19:04:51,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:04:51,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565134933] [2021-08-25 19:04:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:04:51,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:04:51,703 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:04:51,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261518333] [2021-08-25 19:04:51,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-25 19:04:51,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:04:51,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:04:51,704 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) [2021-08-25 19:04:51,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-25 19:04:51,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-25 19:04:51,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 19:04:51,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-25 19:04:51,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 19:04:51,922 INFO L388 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 [2021-08-25 19:04:51,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-08-25 19:04:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:51,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:51,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:51,963 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-08-25 19:04:51,964 INFO L388 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 41 treesize of output 46 [2021-08-25 19:04:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:52,071 INFO L354 Elim1Store]: treesize reduction 186, result has 16.2 percent of original size [2021-08-25 19:04:52,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 63 [2021-08-25 19:04:52,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:52,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:52,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:52,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:52,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:52,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:52,266 INFO L354 Elim1Store]: treesize reduction 335, result has 9.0 percent of original size [2021-08-25 19:04:52,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 90 treesize of output 103 [2021-08-25 19:04:52,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-25 19:04:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-25 19:04:52,495 INFO L354 Elim1Store]: treesize reduction 648, result has 10.2 percent of original size [2021-08-25 19:04:52,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 106 treesize of output 114 [2021-08-25 19:04:52,897 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-25 19:04:52,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2021-08-25 19:04:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:04:52,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:04:52,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565134933] [2021-08-25 19:04:52,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-25 19:04:52,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261518333] [2021-08-25 19:04:52,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261518333] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 19:04:52,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-25 19:04:52,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-08-25 19:04:52,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986035447] [2021-08-25 19:04:52,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-25 19:04:52,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:04:52,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-25 19:04:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-08-25 19:04:52,923 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:04:53,529 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2021-08-25 19:04:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-25 19:04:53,529 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-25 19:04:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:04:53,530 INFO L225 Difference]: With dead ends: 46 [2021-08-25 19:04:53,530 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 19:04:53,530 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 602.3ms TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-08-25 19:04:53,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 19:04:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 19:04:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 19:04:53,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-08-25 19:04:53,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:04:53,530 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 19:04:53,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:04:53,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 19:04:53,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 19:04:53,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 19:04:53,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-25 19:04:53,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 19:04:53,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 19:04:53,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 19:04:53,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 19:04:53,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 19:04:53,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 19:04:54,980 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-25 19:04:54,980 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-25 19:04:54,980 INFO L857 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-08-25 19:04:54,980 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L853 garLoopResultBuilder]: At program point L33-3(lines 33 36) the Hoare annotation is: (let ((.cse8 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse7 (select .cse8 ULTIMATE.start_main_~a~0.offset))) (let ((.cse0 (= 2 .cse7)) (.cse1 (= (select (select |#memory_int| ULTIMATE.start_main_~b~0.base) ULTIMATE.start_main_~b~0.offset) 1)) (.cse2 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse3 (= (+ 20 .cse7) (select .cse8 (+ ULTIMATE.start_main_~a~0.offset 8)))) (.cse4 (= ULTIMATE.start_main_~b~0.offset 0))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~i~0) .cse1 .cse2 (<= ULTIMATE.start_main_~i~0 2) (< 1 ~N~0) .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~0 1) .cse4) (and .cse0 .cse1 (<= 3 ULTIMATE.start_main_~i~0) .cse2 .cse3 .cse4 (< 2 ~N~0) (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse5 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse5 (+ .cse6 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse5 (+ .cse6 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))))))) [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 41) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 41) the Hoare annotation is: (let ((.cse28 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse27 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse15 (select .cse27 (+ ULTIMATE.start_main_~a~0.offset 8))) (.cse8 (select .cse28 (+ ULTIMATE.start_main_~b~0.offset 8))) (.cse9 (select .cse28 ULTIMATE.start_main_~b~0.offset)) (.cse24 (select .cse27 ULTIMATE.start_main_~a~0.offset))) (let ((.cse11 (= 2 .cse24)) (.cse10 (= .cse9 1)) (.cse12 (= ULTIMATE.start_main_~i~0 1)) (.cse5 (<= ~N~0 2)) (.cse0 (<= 1 ULTIMATE.start_main_~i~0)) (.cse4 (<= ULTIMATE.start_main_~i~0 2)) (.cse16 (exists ((v_ULTIMATE.start_main_~i~0_37 Int)) (and (<= 2 v_ULTIMATE.start_main_~i~0_37) (let ((.cse25 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse26 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse25 (+ ULTIMATE.start_main_~a~0.offset .cse26)) (+ 20 (select .cse25 (+ ULTIMATE.start_main_~a~0.offset .cse26 (- 8))))))))) (.cse1 (= .cse8 (+ .cse9 .cse24))) (.cse2 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse3 (= .cse8 (+ .cse24 1))) (.cse6 (= (+ 20 .cse24) .cse15)) (.cse7 (= ULTIMATE.start_main_~b~0.offset 0)) (.cse17 (< 2 ~N~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (< 1 ~N~0) .cse5 .cse6 .cse7 (= .cse8 (+ .cse9 2))) (and (<= ULTIMATE.start_main_~i~0 1) .cse0 .cse10 (<= ~N~0 1) .cse7) (and .cse11 .cse10 .cse2 .cse12 .cse6 .cse7 (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse13 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse14 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse13 (+ .cse14 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse13 (+ .cse14 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))) (and .cse11 .cse10 .cse2 .cse12 .cse5 .cse6 .cse7) (and .cse0 (= .cse15 22) .cse16 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse17) (and (exists ((ULTIMATE.start_main_~a~0.base Int) (v_ULTIMATE.start_main_~i~0_37 Int) (ULTIMATE.start_main_~i~0 Int)) (let ((.cse21 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse18 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse19 (select .cse21 0)) (.cse22 (select .cse21 8))) (and (= (select .cse18 (+ ULTIMATE.start_main_~b~0.offset 8)) (+ (select .cse18 ULTIMATE.start_main_~b~0.offset) .cse19)) (<= 2 v_ULTIMATE.start_main_~i~0_37) (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse20 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse18 (+ .cse20 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse21 (+ .cse20 (- 8)))) (select .cse18 (+ .cse20 ULTIMATE.start_main_~b~0.offset)))) (= .cse22 (+ .cse19 20)) (let ((.cse23 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse21 .cse23) (+ (select .cse21 (+ .cse23 (- 8))) 20))) (= .cse22 22))))) (<= 3 ULTIMATE.start_main_~i~0) .cse16 .cse1 .cse2 .cse3 .cse6 .cse7 .cse17))))) [2021-08-25 19:04:54,981 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 41) no Hoare annotation was computed. [2021-08-25 19:04:54,981 INFO L860 garLoopResultBuilder]: At program point L47(lines 21 48) the Hoare annotation is: true [2021-08-25 19:04:54,982 INFO L857 garLoopResultBuilder]: For program point L43-2(lines 43 46) no Hoare annotation was computed. [2021-08-25 19:04:54,982 INFO L853 garLoopResultBuilder]: At program point L43-3(lines 43 46) the Hoare annotation is: (let ((.cse22 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse20 (select |#memory_int| ULTIMATE.start_main_~b~0.base))) (let ((.cse16 (select .cse20 (+ ULTIMATE.start_main_~b~0.offset 8))) (.cse17 (select .cse20 ULTIMATE.start_main_~b~0.offset)) (.cse18 (select .cse22 ULTIMATE.start_main_~a~0.offset))) (let ((.cse1 (<= ~N~0 1)) (.cse11 (<= 2 ULTIMATE.start_main_~i~0)) (.cse5 (= ULTIMATE.start_main_~i~0 0)) (.cse2 (exists ((ULTIMATE.start_main_~a~0.base Int) (v_ULTIMATE.start_main_~i~0_37 Int) (ULTIMATE.start_main_~i~0 Int)) (let ((.cse28 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse25 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse26 (select .cse28 0)) (.cse29 (select .cse28 8))) (and (= (select .cse25 (+ ULTIMATE.start_main_~b~0.offset 8)) (+ (select .cse25 ULTIMATE.start_main_~b~0.offset) .cse26)) (<= 2 v_ULTIMATE.start_main_~i~0_37) (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse27 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse25 (+ .cse27 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse28 (+ .cse27 (- 8)))) (select .cse25 (+ .cse27 ULTIMATE.start_main_~b~0.offset)))) (= .cse29 (+ .cse26 20)) (let ((.cse30 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse28 .cse30) (+ (select .cse28 (+ .cse30 (- 8))) 20))) (= .cse29 22)))))) (.cse14 (<= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse15 (exists ((v_ULTIMATE.start_main_~i~0_37 Int)) (and (<= 2 v_ULTIMATE.start_main_~i~0_37) (let ((.cse23 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse24 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse23 (+ ULTIMATE.start_main_~a~0.offset .cse24)) (+ 20 (select .cse23 (+ ULTIMATE.start_main_~a~0.offset .cse24 (- 8))))))))) (.cse3 (= 2 .cse18)) (.cse0 (<= 1 ULTIMATE.start_main_~i~0)) (.cse4 (= .cse17 1)) (.cse6 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse12 (<= ULTIMATE.start_main_~i~0 2)) (.cse13 (<= ~N~0 2)) (.cse7 (= (+ 20 .cse18) (select .cse22 (+ ULTIMATE.start_main_~a~0.offset 8)))) (.cse8 (= ULTIMATE.start_main_~b~0.offset 0)) (.cse19 (= .cse16 (+ .cse17 2)))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse9 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse10 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse9 (+ .cse10 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse9 (+ .cse10 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))) (and .cse11 .cse12 .cse13) (and .cse4 .cse5 .cse1 .cse8) (and .cse2 .cse11 .cse14 .cse4 .cse15 (= .cse16 (+ .cse17 .cse18)) .cse6 .cse7 .cse8) (and .cse3 .cse4 .cse5 .cse6 .cse13 .cse7 .cse8 .cse19) (and .cse2 .cse14 .cse4 (let ((.cse21 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse20 (+ .cse21 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse22 (+ .cse21 ULTIMATE.start_main_~a~0.offset (- 8)))) (select .cse20 (+ .cse21 ULTIMATE.start_main_~b~0.offset)))) .cse15 .cse6 (= ULTIMATE.start_main_~i~0 1) .cse7 .cse8) (and .cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse4 .cse6 .cse12 .cse13 .cse7 .cse8 .cse19))))) [2021-08-25 19:04:54,982 INFO L857 garLoopResultBuilder]: For program point L43-4(lines 43 46) no Hoare annotation was computed. [2021-08-25 19:04:54,986 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 19:04:55,013 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,021 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,022 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,022 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,022 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,022 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,041 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,062 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,062 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,062 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,062 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,062 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,063 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,064 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,064 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,066 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,066 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,066 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,066 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,066 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,067 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:04:55 BoogieIcfgContainer [2021-08-25 19:04:55,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 19:04:55,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 19:04:55,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 19:04:55,077 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 19:04:55,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:04:38" (3/4) ... [2021-08-25 19:04:55,079 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 19:04:55,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-08-25 19:04:55,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 19:04:55,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 19:04:55,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 19:04:55,100 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && 1 < N) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) || ((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && 3 <= i) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20)) [2021-08-25 19:04:55,100 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((1 <= i && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 1 < N) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) || ((((i <= 1 && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && N <= 1) && b == 0)) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((1 <= i && unknown-#memory_int-unknown[a][a + 8] == 22) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 3 <= i) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) [2021-08-25 19:04:55,100 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= i && N <= 1) || ((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 == unknown-#memory_int-unknown[a][a]) && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((2 <= i && i <= 2) && N <= 2)) || (((unknown-#memory_int-unknown[b][b] == 1 && i == 0) && N <= 1) && b == 0)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 <= i) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && unknown-#memory_int-unknown[b][i * 8 + b + -8] + unknown-#memory_int-unknown[a][i * 8 + a + -8] == unknown-#memory_int-unknown[b][i * 8 + b]) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= cond) && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) [2021-08-25 19:04:55,106 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 19:04:55,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 19:04:55,106 INFO L168 Benchmark]: Toolchain (without parser) took 17133.16 ms. Allocated memory was 65.0 MB in the beginning and 207.6 MB in the end (delta: 142.6 MB). Free memory was 49.0 MB in the beginning and 103.1 MB in the end (delta: -54.1 MB). Peak memory consumption was 88.4 MB. Max. memory is 16.1 GB. [2021-08-25 19:04:55,107 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 48.2 MB. Free memory was 28.7 MB in the beginning and 28.7 MB in the end (delta: 55.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:04:55,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.09 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 48.7 MB in the end (delta: 148.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 19:04:55,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.85 ms. Allocated memory is still 65.0 MB. Free memory was 48.5 MB in the beginning and 47.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:04:55,107 INFO L168 Benchmark]: Boogie Preprocessor took 33.44 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 45.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:04:55,107 INFO L168 Benchmark]: RCFGBuilder took 320.45 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 46.3 MB in the end (delta: -626.7 kB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-08-25 19:04:55,108 INFO L168 Benchmark]: TraceAbstraction took 16524.19 ms. Allocated memory was 65.0 MB in the beginning and 207.6 MB in the end (delta: 142.6 MB). Free memory was 45.7 MB in the beginning and 106.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 122.3 MB. Max. memory is 16.1 GB. [2021-08-25 19:04:55,108 INFO L168 Benchmark]: Witness Printer took 29.45 ms. Allocated memory is still 207.6 MB. Free memory was 106.3 MB in the beginning and 103.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 19:04:55,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 48.2 MB. Free memory was 28.7 MB in the beginning and 28.7 MB in the end (delta: 55.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 176.09 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 48.7 MB in the end (delta: 148.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.85 ms. Allocated memory is still 65.0 MB. Free memory was 48.5 MB in the beginning and 47.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.44 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 45.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 320.45 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 46.3 MB in the end (delta: -626.7 kB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16524.19 ms. Allocated memory was 65.0 MB in the beginning and 207.6 MB in the end (delta: 142.6 MB). Free memory was 45.7 MB in the beginning and 106.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 122.3 MB. Max. memory is 16.1 GB. * Witness Printer took 29.45 ms. Allocated memory is still 207.6 MB. Free memory was 106.3 MB in the beginning and 103.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16375.0ms, OverallIterations: 13, TraceHistogramMax: 3, EmptinessCheckTime: 12.9ms, AutomataDifference: 4562.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1246.3ms, InitialAbstractionConstructionTime: 6.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 209 SDtfs, 412 SDslu, 494 SDs, 0 SdLazy, 892 SolverSat, 184 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3077.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1899.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=11, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 59.8ms AutomataMinimizationTime, 13 MinimizatonAttempts, 180 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 28 NumberOfFragments, 1321 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1525 FormulaSimplificationTreeSizeReduction, 48.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 1418 FormulaSimplificationTreeSizeReductionInter, 1191.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 107.5ms SsaConstructionTime, 218.2ms SatisfiabilityAnalysisTime, 6111.2ms InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 217 ConstructedInterpolants, 36 QuantifiedInterpolants, 3470 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1075 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 21/61 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant [2021-08-25 19:04:55,127 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,127 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,127 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,127 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,129 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] Derived loop invariant: (((((((((((((1 <= i && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 1 < N) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) || ((((i <= 1 && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && N <= 1) && b == 0)) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((1 <= i && unknown-#memory_int-unknown[a][a + 8] == 22) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 3 <= i) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) - InvariantResult [Line: 33]: Loop Invariant [2021-08-25 19:04:55,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: ((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && 1 < N) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) || ((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && 3 <= i) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20)) - InvariantResult [Line: 43]: Loop Invariant [2021-08-25 19:04:55,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,139 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,145 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,145 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-08-25 19:04:55,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] Derived loop invariant: (((((((1 <= i && N <= 1) || ((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 == unknown-#memory_int-unknown[a][a]) && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((2 <= i && i <= 2) && N <= 2)) || (((unknown-#memory_int-unknown[b][b] == 1 && i == 0) && N <= 1) && b == 0)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 <= i) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && unknown-#memory_int-unknown[b][i * 8 + b + -8] + unknown-#memory_int-unknown[a][i * 8 + a + -8] == unknown-#memory_int-unknown[b][i * 8 + b]) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= cond) && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) RESULT: Ultimate proved your program to be correct! [2021-08-25 19:04:55,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...