./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-cav19/array_init_pair_symmetr2.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 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 21:46:46,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 21:46:46,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 21:46:46,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 21:46:46,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 21:46:46,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 21:46:46,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 21:46:46,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 21:46:46,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 21:46:46,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 21:46:46,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 21:46:46,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 21:46:46,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 21:46:46,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 21:46:46,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 21:46:46,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 21:46:46,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 21:46:46,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 21:46:46,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 21:46:46,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 21:46:46,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 21:46:46,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 21:46:46,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 21:46:46,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 21:46:46,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 21:46:46,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 21:46:46,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 21:46:46,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 21:46:46,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 21:46:46,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 21:46:46,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 21:46:46,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 21:46:46,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 21:46:46,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 21:46:46,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 21:46:46,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 21:46:46,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 21:46:46,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 21:46:46,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 21:46:46,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 21:46:46,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 21:46:46,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 21:46:46,390 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 21:46:46,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 21:46:46,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 21:46:46,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 21:46:46,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 21:46:46,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 21:46:46,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 21:46:46,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 21:46:46,401 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 21:46:46,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 21:46:46,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 21:46:46,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 21:46:46,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 21:46:46,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:46:46,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 21:46:46,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 21:46:46,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 21:46:46,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 21:46:46,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 21:46:46,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 21:46:46,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 21:46:46,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 21:46:46,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 21:46:46,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2021-12-15 21:46:46,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 21:46:46,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 21:46:46,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 21:46:46,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 21:46:46,638 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 21:46:46,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2021-12-15 21:46:46,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789385335/22691211471d4e26a9fe9e60ccbc4b06/FLAGacf44a28d [2021-12-15 21:46:47,061 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 21:46:47,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2021-12-15 21:46:47,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789385335/22691211471d4e26a9fe9e60ccbc4b06/FLAGacf44a28d [2021-12-15 21:46:47,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789385335/22691211471d4e26a9fe9e60ccbc4b06 [2021-12-15 21:46:47,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 21:46:47,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 21:46:47,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 21:46:47,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 21:46:47,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 21:46:47,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706270d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47, skipping insertion in model container [2021-12-15 21:46:47,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 21:46:47,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 21:46:47,215 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-cav19/array_init_pair_symmetr2.c[415,428] [2021-12-15 21:46:47,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:46:47,245 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 21:46:47,254 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-cav19/array_init_pair_symmetr2.c[415,428] [2021-12-15 21:46:47,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:46:47,276 INFO L208 MainTranslator]: Completed translation [2021-12-15 21:46:47,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47 WrapperNode [2021-12-15 21:46:47,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 21:46:47,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 21:46:47,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 21:46:47,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 21:46:47,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,305 INFO L137 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2021-12-15 21:46:47,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 21:46:47,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 21:46:47,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 21:46:47,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 21:46:47,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 21:46:47,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 21:46:47,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 21:46:47,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 21:46:47,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (1/1) ... [2021-12-15 21:46:47,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:46:47,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:46:47,364 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) [2021-12-15 21:46:47,369 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 [2021-12-15 21:46:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 21:46:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 21:46:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 21:46:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 21:46:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 21:46:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 21:46:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 21:46:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 21:46:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 21:46:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 21:46:47,437 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 21:46:47,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 21:46:47,529 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 21:46:47,534 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 21:46:47,534 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 21:46:47,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:47 BoogieIcfgContainer [2021-12-15 21:46:47,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 21:46:47,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 21:46:47,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 21:46:47,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 21:46:47,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:46:47" (1/3) ... [2021-12-15 21:46:47,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e38a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:47, skipping insertion in model container [2021-12-15 21:46:47,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:47" (2/3) ... [2021-12-15 21:46:47,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e38a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:47, skipping insertion in model container [2021-12-15 21:46:47,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:47" (3/3) ... [2021-12-15 21:46:47,542 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2021-12-15 21:46:47,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 21:46:47,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 21:46:47,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 21:46:47,580 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 [2021-12-15 21:46:47,581 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 21:46:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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) [2021-12-15 21:46:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 21:46:47,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:47,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:46:47,596 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:47,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1607472667, now seen corresponding path program 1 times [2021-12-15 21:46:47,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:47,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013428728] [2021-12-15 21:46:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:47,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:46:47,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:47,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013428728] [2021-12-15 21:46:47,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013428728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:46:47,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:46:47,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 21:46:47,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930114703] [2021-12-15 21:46:47,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:46:47,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 21:46:47,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:46:47,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 21:46:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 21:46:47,813 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:46:47,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:46:47,831 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2021-12-15 21:46:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 21:46:47,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 21:46:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:46:47,839 INFO L225 Difference]: With dead ends: 50 [2021-12-15 21:46:47,839 INFO L226 Difference]: Without dead ends: 22 [2021-12-15 21:46:47,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 21:46:47,847 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 [2021-12-15 21:46:47,848 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] [2021-12-15 21:46:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-15 21:46:47,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-15 21:46:47,876 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) [2021-12-15 21:46:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-12-15 21:46:47,879 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2021-12-15 21:46:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:46:47,879 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-12-15 21:46:47,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:46:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-12-15 21:46:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 21:46:47,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:47,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:46:47,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 21:46:47,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1898116011, now seen corresponding path program 1 times [2021-12-15 21:46:47,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:47,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850989939] [2021-12-15 21:46:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:47,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:46:47,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:47,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850989939] [2021-12-15 21:46:47,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850989939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:46:47,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:46:47,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 21:46:47,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371030325] [2021-12-15 21:46:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:46:47,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 21:46:47,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:46:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 21:46:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:46:47,986 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:46:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:46:48,092 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-12-15 21:46:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 21:46:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 21:46:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:46:48,093 INFO L225 Difference]: With dead ends: 40 [2021-12-15 21:46:48,093 INFO L226 Difference]: Without dead ends: 30 [2021-12-15 21:46:48,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:46:48,108 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 21:46:48,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 24 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 21:46:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-15 21:46:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-12-15 21:46:48,125 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) [2021-12-15 21:46:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-15 21:46:48,126 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2021-12-15 21:46:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:46:48,126 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-15 21:46:48,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:46:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-12-15 21:46:48,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 21:46:48,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:48,130 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] [2021-12-15 21:46:48,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 21:46:48,131 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:48,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:48,135 INFO L85 PathProgramCache]: Analyzing trace with hash 544146986, now seen corresponding path program 1 times [2021-12-15 21:46:48,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:48,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639163734] [2021-12-15 21:46:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:48,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-15 21:46:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:48,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-15 21:46:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-15 21:46:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-15 21:46:48,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:48,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639163734] [2021-12-15 21:46:48,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639163734] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 21:46:48,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623182699] [2021-12-15 21:46:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:48,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:48,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:46:48,265 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) [2021-12-15 21:46:48,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 21:46:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:48,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 21:46:48,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:46:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-15 21:46:48,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:46:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-15 21:46:48,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623182699] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 21:46:48,539 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 21:46:48,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2021-12-15 21:46:48,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061574035] [2021-12-15 21:46:48,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 21:46:48,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-15 21:46:48,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:46:48,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 21:46:48,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-15 21:46:48,542 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-15 21:46:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:46:48,683 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2021-12-15 21:46:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 21:46:48,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 29 [2021-12-15 21:46:48,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:46:48,687 INFO L225 Difference]: With dead ends: 72 [2021-12-15 21:46:48,687 INFO L226 Difference]: Without dead ends: 61 [2021-12-15 21:46:48,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-12-15 21:46:48,692 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 136 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 21:46:48,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 38 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 21:46:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-15 21:46:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2021-12-15 21:46:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 21:46:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2021-12-15 21:46:48,712 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2021-12-15 21:46:48,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:46:48,712 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2021-12-15 21:46:48,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-15 21:46:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2021-12-15 21:46:48,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-15 21:46:48,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:48,715 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:46:48,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 21:46:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:48,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1645511465, now seen corresponding path program 2 times [2021-12-15 21:46:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:48,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453817114] [2021-12-15 21:46:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-15 21:46:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-15 21:46:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-15 21:46:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-15 21:46:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-15 21:46:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-15 21:46:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-15 21:46:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-15 21:46:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-15 21:46:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-15 21:46:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-15 21:46:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-15 21:46:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-12-15 21:46:49,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:49,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453817114] [2021-12-15 21:46:49,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453817114] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 21:46:49,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137951763] [2021-12-15 21:46:49,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 21:46:49,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:49,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:46:49,212 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) [2021-12-15 21:46:49,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 21:46:49,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 21:46:49,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 21:46:49,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 21:46:49,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:46:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-12-15 21:46:49,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:46:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-12-15 21:46:49,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137951763] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 21:46:49,808 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 21:46:49,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2021-12-15 21:46:49,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961478615] [2021-12-15 21:46:49,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 21:46:49,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-15 21:46:49,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:46:49,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-15 21:46:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2021-12-15 21:46:49,810 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2021-12-15 21:46:50,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:46:50,128 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2021-12-15 21:46:50,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 21:46:50,129 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 89 [2021-12-15 21:46:50,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:46:50,132 INFO L225 Difference]: With dead ends: 162 [2021-12-15 21:46:50,132 INFO L226 Difference]: Without dead ends: 145 [2021-12-15 21:46:50,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2021-12-15 21:46:50,137 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 315 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 21:46:50,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 63 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 21:46:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-12-15 21:46:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2021-12-15 21:46:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-15 21:46:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2021-12-15 21:46:50,151 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2021-12-15 21:46:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:46:50,152 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2021-12-15 21:46:50,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2021-12-15 21:46:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2021-12-15 21:46:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-15 21:46:50,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:50,155 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:46:50,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 21:46:50,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-15 21:46:50,371 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash 548463335, now seen corresponding path program 3 times [2021-12-15 21:46:50,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:50,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822534092] [2021-12-15 21:46:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:50,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-15 21:46:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-15 21:46:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-15 21:46:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-15 21:46:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-15 21:46:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-15 21:46:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-15 21:46:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-15 21:46:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-15 21:46:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-15 21:46:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-15 21:46:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-15 21:46:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-15 21:46:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-15 21:46:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-15 21:46:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-15 21:46:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-15 21:46:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-15 21:46:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-15 21:46:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-15 21:46:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-15 21:46:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-15 21:46:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-15 21:46:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-15 21:46:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-15 21:46:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-15 21:46:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-15 21:46:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-15 21:46:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-15 21:46:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-15 21:46:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2021-12-15 21:46:50,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:50,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822534092] [2021-12-15 21:46:50,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822534092] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 21:46:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057097975] [2021-12-15 21:46:50,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-15 21:46:50,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:50,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:46:50,702 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) [2021-12-15 21:46:50,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 21:46:51,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-15 21:46:51,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 21:46:51,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-15 21:46:51,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:46:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2021-12-15 21:46:51,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:46:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2021-12-15 21:46:52,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057097975] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 21:46:52,004 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 21:46:52,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2021-12-15 21:46:52,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945420201] [2021-12-15 21:46:52,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 21:46:52,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-15 21:46:52,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:46:52,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-15 21:46:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2021-12-15 21:46:52,007 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2021-12-15 21:46:52,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:46:52,721 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2021-12-15 21:46:52,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-15 21:46:52,722 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 209 [2021-12-15 21:46:52,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:46:52,724 INFO L225 Difference]: With dead ends: 342 [2021-12-15 21:46:52,724 INFO L226 Difference]: Without dead ends: 313 [2021-12-15 21:46:52,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2021-12-15 21:46:52,725 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 677 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 21:46:52,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 131 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 21:46:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-12-15 21:46:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2021-12-15 21:46:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 124 states have internal predecessors, (127), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-12-15 21:46:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2021-12-15 21:46:52,742 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2021-12-15 21:46:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:46:52,742 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2021-12-15 21:46:52,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2021-12-15 21:46:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2021-12-15 21:46:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-12-15 21:46:52,747 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:46:52,748 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:46:52,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 21:46:52,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:52,965 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:46:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:46:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1915094685, now seen corresponding path program 4 times [2021-12-15 21:46:52,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:46:52,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836844434] [2021-12-15 21:46:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:46:52,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:46:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-15 21:46:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-15 21:46:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-15 21:46:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-15 21:46:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-15 21:46:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-15 21:46:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-15 21:46:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-15 21:46:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-15 21:46:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-15 21:46:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-15 21:46:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-15 21:46:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-15 21:46:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-15 21:46:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-15 21:46:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-15 21:46:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-15 21:46:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-15 21:46:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-15 21:46:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-15 21:46:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-15 21:46:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-15 21:46:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-15 21:46:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-15 21:46:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-15 21:46:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-15 21:46:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-15 21:46:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-15 21:46:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-15 21:46:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-15 21:46:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-15 21:46:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-15 21:46:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-15 21:46:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-15 21:46:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-15 21:46:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-15 21:46:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-15 21:46:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-15 21:46:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-15 21:46:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-15 21:46:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-15 21:46:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-15 21:46:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-15 21:46:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-15 21:46:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-15 21:46:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-15 21:46:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-15 21:46:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-15 21:46:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-15 21:46:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-15 21:46:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-15 21:46:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-15 21:46:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-15 21:46:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-15 21:46:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-15 21:46:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-15 21:46:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-15 21:46:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-15 21:46:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-15 21:46:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-12-15 21:46:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-15 21:46:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-15 21:46:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-15 21:46:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-15 21:46:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-15 21:46:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-15 21:46:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:46:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2021-12-15 21:46:53,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:46:53,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836844434] [2021-12-15 21:46:53,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836844434] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 21:46:53,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338361561] [2021-12-15 21:46:53,544 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-15 21:46:53,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:46:53,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:46:53,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:46:53,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 21:46:53,750 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-15 21:46:53,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 21:46:53,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 280 conjunts are in the unsatisfiable core [2021-12-15 21:46:53,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:46:53,801 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-15 21:46:53,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-12-15 21:46:54,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:54,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2021-12-15 21:46:54,018 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 12 treesize of output 11 [2021-12-15 21:46:54,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-12-15 21:46:54,675 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:54,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:55,258 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:55,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:55,617 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:55,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:55,976 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:55,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:56,358 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:56,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:56,710 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:56,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:57,053 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:57,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:57,410 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:57,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:57,750 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:57,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:58,109 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:58,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:58,456 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:58,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:58,821 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:58,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:59,261 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:59,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:46:59,686 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:46:59,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:00,134 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:00,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:00,535 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:00,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:00,921 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:00,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:01,331 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:01,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:01,765 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:01,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:02,186 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-15 21:47:02,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2021-12-15 21:47:02,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2021-12-15 21:47:02,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2021-12-15 21:47:02,531 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:02,531 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:02,712 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:02,713 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:02,878 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:02,878 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,030 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,033 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,214 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,215 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,397 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,398 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,624 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,625 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,776 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,777 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:03,938 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:03,939 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:04,086 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:04,086 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:04,225 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:04,226 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:04,414 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:04,415 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:04,587 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:04,588 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:04,832 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:04,833 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,038 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,038 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,190 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,190 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,364 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,365 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,560 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,560 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,713 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,714 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:05,871 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-12-15 21:47:05,871 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 1 case distinctions, treesize of input 54 treesize of output 47 [2021-12-15 21:47:06,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 48 treesize of output 12 [2021-12-15 21:47:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 2757 proven. 590 refuted. 0 times theorem prover too weak. 7125 trivial. 0 not checked. [2021-12-15 21:47:06,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:47:08,437 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_117| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_117| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_853 Int)) (< 0 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_117| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4)))))) is different from false [2021-12-15 21:47:18,450 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_118| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_118| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_852 Int) (|v_ULTIMATE.start_main_~i~0#1_117| Int) (v_ArrVal_853 Int)) (or (< 0 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_118| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_852) (+ (* |v_ULTIMATE.start_main_~i~0#1_117| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_117| (+ |v_ULTIMATE.start_main_~i~0#1_118| 1)))))) is different from false [2021-12-15 21:47:52,791 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_119| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_119| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_852 Int) (v_ArrVal_850 Int) (|v_ULTIMATE.start_main_~i~0#1_118| Int) (|v_ULTIMATE.start_main_~i~0#1_117| Int) (v_ArrVal_853 Int)) (or (< 0 (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_119| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_850) (+ (* |v_ULTIMATE.start_main_~i~0#1_118| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_852) (+ (* |v_ULTIMATE.start_main_~i~0#1_117| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_117| (+ |v_ULTIMATE.start_main_~i~0#1_118| 1)) (< |v_ULTIMATE.start_main_~i~0#1_118| (+ |v_ULTIMATE.start_main_~i~0#1_119| 1)))))) is different from false