./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array7_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array7_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 11:31:28,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 11:31:28,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 11:31:28,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 11:31:28,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 11:31:28,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 11:31:28,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 11:31:28,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 11:31:28,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 11:31:28,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 11:31:28,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 11:31:28,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 11:31:28,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 11:31:28,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 11:31:28,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 11:31:28,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 11:31:28,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 11:31:28,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 11:31:28,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 11:31:28,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 11:31:28,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 11:31:28,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 11:31:28,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 11:31:28,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 11:31:28,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 11:31:28,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 11:31:28,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 11:31:28,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 11:31:28,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 11:31:28,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 11:31:28,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 11:31:28,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 11:31:28,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 11:31:28,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 11:31:28,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 11:31:28,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 11:31:28,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 11:31:28,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 11:31:28,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 11:31:28,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 11:31:28,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 11:31:28,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 11:31:28,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 11:31:28,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 11:31:28,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 11:31:28,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 11:31:28,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 11:31:28,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 11:31:28,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 11:31:28,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 11:31:28,239 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 11:31:28,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 11:31:28,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 11:31:28,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 11:31:28,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 11:31:28,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 11:31:28,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 11:31:28,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 11:31:28,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 11:31:28,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 11:31:28,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 11:31:28,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:31:28,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 11:31:28,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 11:31:28,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 11:31:28,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 11:31:28,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 11:31:28,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 11:31:28,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 11:31:28,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 11:31:28,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 11:31:28,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2021-12-14 11:31:28,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 11:31:28,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 11:31:28,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 11:31:28,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 11:31:28,500 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 11:31:28,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-14 11:31:28,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd28903ee/78335a4511d9485c9f03ce2ebaa8cfe9/FLAGeff88b932 [2021-12-14 11:31:28,944 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 11:31:28,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-14 11:31:28,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd28903ee/78335a4511d9485c9f03ce2ebaa8cfe9/FLAGeff88b932 [2021-12-14 11:31:28,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd28903ee/78335a4511d9485c9f03ce2ebaa8cfe9 [2021-12-14 11:31:28,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 11:31:28,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 11:31:28,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 11:31:28,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 11:31:28,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 11:31:28,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:31:28" (1/1) ... [2021-12-14 11:31:28,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c553d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:28, skipping insertion in model container [2021-12-14 11:31:28,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:31:28" (1/1) ... [2021-12-14 11:31:28,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 11:31:28,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 11:31:29,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-14 11:31:29,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:31:29,212 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 11:31:29,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-14 11:31:29,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:31:29,243 INFO L208 MainTranslator]: Completed translation [2021-12-14 11:31:29,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29 WrapperNode [2021-12-14 11:31:29,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 11:31:29,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 11:31:29,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 11:31:29,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 11:31:29,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,290 INFO L137 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2021-12-14 11:31:29,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 11:31:29,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 11:31:29,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 11:31:29,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 11:31:29,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 11:31:29,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 11:31:29,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 11:31:29,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 11:31:29,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (1/1) ... [2021-12-14 11:31:29,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:31:29,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:31:29,362 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) [2021-12-14 11:31:29,365 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 [2021-12-14 11:31:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 11:31:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 11:31:29,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 11:31:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 11:31:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 11:31:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 11:31:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 11:31:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 11:31:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 11:31:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 11:31:29,447 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 11:31:29,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 11:31:29,628 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 11:31:29,636 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 11:31:29,638 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-14 11:31:29,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:31:29 BoogieIcfgContainer [2021-12-14 11:31:29,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 11:31:29,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 11:31:29,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 11:31:29,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 11:31:29,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:31:28" (1/3) ... [2021-12-14 11:31:29,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fabf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:31:29, skipping insertion in model container [2021-12-14 11:31:29,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:29" (2/3) ... [2021-12-14 11:31:29,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fabf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:31:29, skipping insertion in model container [2021-12-14 11:31:29,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:31:29" (3/3) ... [2021-12-14 11:31:29,648 INFO L111 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2021-12-14 11:31:29,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 11:31:29,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 11:31:29,690 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 11:31:29,696 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 11:31:29,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 11:31:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:29,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-14 11:31:29,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:29,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:29,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2021-12-14 11:31:29,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:29,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231537184] [2021-12-14 11:31:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:29,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 11:31:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:31:29,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:31:29,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231537184] [2021-12-14 11:31:29,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231537184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:31:29,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:31:29,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 11:31:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588992433] [2021-12-14 11:31:29,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:31:29,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 11:31:29,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:31:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 11:31:29,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 11:31:29,927 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:31:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:31:29,944 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions. [2021-12-14 11:31:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 11:31:29,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-14 11:31:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:31:29,953 INFO L225 Difference]: With dead ends: 49 [2021-12-14 11:31:29,953 INFO L226 Difference]: Without dead ends: 22 [2021-12-14 11:31:29,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 11:31:29,960 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:31:29,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:31:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-14 11:31:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-14 11:31:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-12-14 11:31:29,995 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2021-12-14 11:31:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:31:29,995 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-12-14 11:31:29,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:31:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-12-14 11:31:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-14 11:31:29,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:29,999 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:29,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 11:31:30,000 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:30,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:30,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1396045698, now seen corresponding path program 1 times [2021-12-14 11:31:30,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:30,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897477589] [2021-12-14 11:31:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:30,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 11:31:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 11:31:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 11:31:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 11:31:30,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:31:30,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897477589] [2021-12-14 11:31:30,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897477589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:31:30,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:31:30,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 11:31:30,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735564871] [2021-12-14 11:31:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:31:30,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 11:31:30,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:31:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 11:31:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 11:31:30,200 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 11:31:30,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:31:30,230 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2021-12-14 11:31:30,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 11:31:30,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2021-12-14 11:31:30,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:31:30,231 INFO L225 Difference]: With dead ends: 27 [2021-12-14 11:31:30,231 INFO L226 Difference]: Without dead ends: 23 [2021-12-14 11:31:30,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:31:30,233 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:31:30,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:31:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-14 11:31:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-14 11:31:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:30,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-14 11:31:30,238 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27 [2021-12-14 11:31:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:31:30,239 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-14 11:31:30,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 11:31:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-14 11:31:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-14 11:31:30,241 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:30,241 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:30,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 11:31:30,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1623352868, now seen corresponding path program 1 times [2021-12-14 11:31:30,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:30,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371876240] [2021-12-14 11:31:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:30,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 11:31:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 11:31:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 11:31:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 11:31:30,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:31:30,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371876240] [2021-12-14 11:31:30,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371876240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:31:30,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:31:30,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 11:31:30,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99458147] [2021-12-14 11:31:30,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:31:30,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 11:31:30,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:31:30,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 11:31:30,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:31:30,331 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 11:31:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:31:30,364 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2021-12-14 11:31:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 11:31:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2021-12-14 11:31:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:31:30,366 INFO L225 Difference]: With dead ends: 43 [2021-12-14 11:31:30,366 INFO L226 Difference]: Without dead ends: 26 [2021-12-14 11:31:30,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:31:30,368 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:31:30,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:31:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-14 11:31:30,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-12-14 11:31:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:30,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-14 11:31:30,373 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 29 [2021-12-14 11:31:30,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:31:30,374 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-14 11:31:30,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 11:31:30,374 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-12-14 11:31:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-14 11:31:30,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:30,375 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:30,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 11:31:30,375 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:30,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1083978846, now seen corresponding path program 1 times [2021-12-14 11:31:30,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:30,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203614916] [2021-12-14 11:31:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:30,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:30,389 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:31:30,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457461381] [2021-12-14 11:31:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:30,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:31:30,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:31:30,395 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) [2021-12-14 11:31:30,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 11:31:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:31:30,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-14 11:31:30,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:31:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-14 11:31:30,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:31:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 11:31:31,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:31:31,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203614916] [2021-12-14 11:31:31,093 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:31:31,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457461381] [2021-12-14 11:31:31,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457461381] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:31:31,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:31:31,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2021-12-14 11:31:31,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103657177] [2021-12-14 11:31:31,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:31:31,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 11:31:31,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:31:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 11:31:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-12-14 11:31:31,100 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 11:31:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:31:31,350 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2021-12-14 11:31:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 11:31:31,350 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 31 [2021-12-14 11:31:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:31:31,351 INFO L225 Difference]: With dead ends: 73 [2021-12-14 11:31:31,351 INFO L226 Difference]: Without dead ends: 42 [2021-12-14 11:31:31,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-12-14 11:31:31,353 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 39 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:31:31,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 129 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:31:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-14 11:31:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2021-12-14 11:31:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-12-14 11:31:31,358 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 31 [2021-12-14 11:31:31,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:31:31,358 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-12-14 11:31:31,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 11:31:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-12-14 11:31:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-14 11:31:31,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:31,359 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:31,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 11:31:31,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:31:31,572 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1214758882, now seen corresponding path program 2 times [2021-12-14 11:31:31,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:31,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531013303] [2021-12-14 11:31:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:31,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:31,588 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:31:31,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418835463] [2021-12-14 11:31:31,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 11:31:31,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:31:31,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:31:31,598 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) [2021-12-14 11:31:31,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 11:31:31,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 11:31:31,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:31:31,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 11:31:31,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:31:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 11:31:31,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:31:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 11:31:31,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:31:31,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531013303] [2021-12-14 11:31:31,881 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:31:31,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418835463] [2021-12-14 11:31:31,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418835463] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:31:31,881 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:31:31,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-12-14 11:31:31,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554910835] [2021-12-14 11:31:31,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:31:31,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 11:31:31,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:31:31,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 11:31:31,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-12-14 11:31:31,883 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-14 11:31:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:31:32,007 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-12-14 11:31:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 11:31:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 35 [2021-12-14 11:31:32,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:31:32,009 INFO L225 Difference]: With dead ends: 40 [2021-12-14 11:31:32,009 INFO L226 Difference]: Without dead ends: 36 [2021-12-14 11:31:32,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-14 11:31:32,010 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:31:32,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 78 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:31:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-14 11:31:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-14 11:31:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 11:31:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-12-14 11:31:32,016 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 35 [2021-12-14 11:31:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:31:32,017 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-12-14 11:31:32,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-14 11:31:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-12-14 11:31:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-14 11:31:32,018 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:31:32,018 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:31:32,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 11:31:32,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:31:32,232 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:31:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:31:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1618850078, now seen corresponding path program 3 times [2021-12-14 11:31:32,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:31:32,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695306161] [2021-12-14 11:31:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:31:32,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:31:32,243 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:31:32,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589165594] [2021-12-14 11:31:32,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 11:31:32,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:31:32,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:31:32,249 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) [2021-12-14 11:31:32,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 11:31:32,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-14 11:31:32,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:31:32,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 84 conjunts are in the unsatisfiable core [2021-12-14 11:31:32,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:31:32,584 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 [2021-12-14 11:31:32,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,634 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2021-12-14 11:31:32,641 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 0 case distinctions, treesize of input 33 treesize of output 33 [2021-12-14 11:31:32,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-12-14 11:31:32,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2021-12-14 11:31:32,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,741 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2021-12-14 11:31:32,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2021-12-14 11:31:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-12-14 11:31:32,892 INFO L354 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2021-12-14 11:31:32,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 157 treesize of output 113 [2021-12-14 11:31:32,918 INFO L354 Elim1Store]: treesize reduction 62, result has 15.1 percent of original size [2021-12-14 11:31:32,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 115 [2021-12-14 11:31:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,945 INFO L354 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2021-12-14 11:31:32,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 76 [2021-12-14 11:31:32,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2021-12-14 11:31:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:32,992 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-12-14 11:31:32,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 34 [2021-12-14 11:31:33,010 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 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-14 11:31:33,014 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 11 treesize of output 5 [2021-12-14 11:31:34,971 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 11:31:34,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1165 treesize of output 1078 [2021-12-14 11:31:35,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,466 INFO L244 Elim1Store]: Index analysis took 453 ms [2021-12-14 11:31:35,643 INFO L354 Elim1Store]: treesize reduction 83, result has 15.3 percent of original size [2021-12-14 11:31:35,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 32 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 4 case distinctions, treesize of input 436 treesize of output 502 [2021-12-14 11:31:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:35,926 INFO L354 Elim1Store]: treesize reduction 130, result has 26.1 percent of original size [2021-12-14 11:31:35,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 6 stores, 7 select indices, 7 select index equivalence classes, 32 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 6 case distinctions, treesize of input 643 treesize of output 865 [2021-12-14 11:31:36,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,699 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-12-14 11:31:36,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 144 [2021-12-14 11:31:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:36,948 INFO L354 Elim1Store]: treesize reduction 63, result has 16.0 percent of original size [2021-12-14 11:31:36,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 357 treesize of output 271 [2021-12-14 11:31:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,441 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-12-14 11:31:37,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 432 treesize of output 310 [2021-12-14 11:31:37,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,634 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-12-14 11:31:37,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 278 treesize of output 163 [2021-12-14 11:31:37,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:37,745 INFO L354 Elim1Store]: treesize reduction 63, result has 16.0 percent of original size [2021-12-14 11:31:37,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 287 treesize of output 186 [2021-12-14 11:31:38,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:38,387 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-12-14 11:31:38,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 226 treesize of output 117 [2021-12-14 11:31:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:44,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:31:45,315 INFO L354 Elim1Store]: treesize reduction 436, result has 37.4 percent of original size [2021-12-14 11:31:45,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 11 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 164 treesize of output 316 [2021-12-14 11:32:34,797 WARN L227 SmtUtils]: Spent 35.56s on a formula simplification. DAG size of input: 93 DAG size of output: 86 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)