./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/reducercommutativity/max10-1.i -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 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 21:00:04,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 21:00:04,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 21:00:04,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 21:00:04,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 21:00:04,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 21:00:04,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 21:00:04,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 21:00:04,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 21:00:04,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 21:00:04,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 21:00:04,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 21:00:04,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 21:00:04,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 21:00:04,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 21:00:04,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 21:00:04,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 21:00:04,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 21:00:04,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 21:00:04,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 21:00:04,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 21:00:04,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 21:00:04,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 21:00:04,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 21:00:04,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 21:00:04,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 21:00:04,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 21:00:04,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 21:00:04,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 21:00:04,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 21:00:04,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 21:00:04,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 21:00:04,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 21:00:04,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 21:00:04,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 21:00:04,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 21:00:04,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 21:00:04,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 21:00:04,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 21:00:04,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 21:00:04,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 21:00:04,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 21:00:04,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 21:00:04,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 21:00:04,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 21:00:04,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 21:00:04,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 21:00:04,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 21:00:04,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 21:00:04,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 21:00:04,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 21:00:04,417 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 21:00:04,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 21:00:04,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 21:00:04,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 21:00:04,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 21:00:04,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 21:00:04,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 21:00:04,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 21:00:04,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 21:00:04,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 21:00:04,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 21:00:04,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:00:04,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 21:00:04,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 21:00:04,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 21:00:04,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e [2022-07-20 21:00:04,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 21:00:04,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 21:00:04,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 21:00:04,658 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 21:00:04,658 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 21:00:04,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max10-1.i [2022-07-20 21:00:04,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da328334c/f74431e2226a4cf78675d2de051242b8/FLAG3b7c1486a [2022-07-20 21:00:05,017 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 21:00:05,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max10-1.i [2022-07-20 21:00:05,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da328334c/f74431e2226a4cf78675d2de051242b8/FLAG3b7c1486a [2022-07-20 21:00:05,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da328334c/f74431e2226a4cf78675d2de051242b8 [2022-07-20 21:00:05,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 21:00:05,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 21:00:05,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 21:00:05,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 21:00:05,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 21:00:05,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38635fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05, skipping insertion in model container [2022-07-20 21:00:05,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 21:00:05,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 21:00:05,625 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/reducercommutativity/max10-1.i[1290,1303] [2022-07-20 21:00:05,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:00:05,632 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 21:00:05,654 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/reducercommutativity/max10-1.i[1290,1303] [2022-07-20 21:00:05,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:00:05,672 INFO L208 MainTranslator]: Completed translation [2022-07-20 21:00:05,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05 WrapperNode [2022-07-20 21:00:05,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 21:00:05,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 21:00:05,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 21:00:05,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 21:00:05,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,704 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-07-20 21:00:05,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 21:00:05,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 21:00:05,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 21:00:05,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 21:00:05,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 21:00:05,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 21:00:05,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 21:00:05,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 21:00:05,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (1/1) ... [2022-07-20 21:00:05,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:00:05,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:05,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 21:00:05,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 21:00:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 21:00:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure max [2022-07-20 21:00:05,793 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2022-07-20 21:00:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 21:00:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 21:00:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 21:00:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 21:00:05,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 21:00:05,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 21:00:05,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 21:00:05,853 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 21:00:05,854 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 21:00:05,951 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 21:00:05,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 21:00:05,956 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-20 21:00:05,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:00:05 BoogieIcfgContainer [2022-07-20 21:00:05,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 21:00:05,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 21:00:05,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 21:00:05,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 21:00:05,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:00:05" (1/3) ... [2022-07-20 21:00:05,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abee010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:00:05, skipping insertion in model container [2022-07-20 21:00:05,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:00:05" (2/3) ... [2022-07-20 21:00:05,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abee010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:00:05, skipping insertion in model container [2022-07-20 21:00:05,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:00:05" (3/3) ... [2022-07-20 21:00:05,963 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2022-07-20 21:00:05,973 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 21:00:05,973 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 21:00:06,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 21:00:06,008 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1505b133, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4bf7ddc [2022-07-20 21:00:06,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 21:00:06,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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) [2022-07-20 21:00:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-20 21:00:06,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:06,018 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:06,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -528134526, now seen corresponding path program 1 times [2022-07-20 21:00:06,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:06,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877639091] [2022-07-20 21:00:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:06,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 21:00:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:00:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 21:00:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:00:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:06,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877639091] [2022-07-20 21:00:06,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877639091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:00:06,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:00:06,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 21:00:06,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140162045] [2022-07-20 21:00:06,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:00:06,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 21:00:06,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 21:00:06,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:00:06,261 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 21:00:06,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:06,288 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-07-20 21:00:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 21:00:06,290 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-07-20 21:00:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:06,295 INFO L225 Difference]: With dead ends: 52 [2022-07-20 21:00:06,295 INFO L226 Difference]: Without dead ends: 24 [2022-07-20 21:00:06,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:00:06,303 INFO L413 NwaCegarLoop]: 33 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, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:06,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-20 21:00:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-20 21:00:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-07-20 21:00:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-20 21:00:06,346 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 28 [2022-07-20 21:00:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:06,347 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-20 21:00:06,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 21:00:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-20 21:00:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-20 21:00:06,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:06,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:06,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 21:00:06,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:06,353 INFO L85 PathProgramCache]: Analyzing trace with hash -321958693, now seen corresponding path program 1 times [2022-07-20 21:00:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:06,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547459238] [2022-07-20 21:00:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 21:00:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:00:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 21:00:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-20 21:00:06,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:06,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547459238] [2022-07-20 21:00:06,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547459238] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:06,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148479221] [2022-07-20 21:00:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:06,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:06,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:06,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:06,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 21:00:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 21:00:06,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:00:06,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:00:06,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148479221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:00:06,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:00:06,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-20 21:00:06,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538165645] [2022-07-20 21:00:06,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:00:06,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 21:00:06,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:06,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 21:00:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:00:06,597 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 21:00:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:06,616 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-07-20 21:00:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 21:00:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-07-20 21:00:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:06,618 INFO L225 Difference]: With dead ends: 46 [2022-07-20 21:00:06,618 INFO L226 Difference]: Without dead ends: 26 [2022-07-20 21:00:06,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:00:06,620 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:06,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-20 21:00:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-07-20 21:00:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-07-20 21:00:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-07-20 21:00:06,628 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 28 [2022-07-20 21:00:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:06,628 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-20 21:00:06,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 21:00:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-07-20 21:00:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 21:00:06,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:06,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:06,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:06,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:06,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:06,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1777476163, now seen corresponding path program 1 times [2022-07-20 21:00:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:06,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141673143] [2022-07-20 21:00:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:06,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 21:00:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 21:00:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-20 21:00:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:00:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:06,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141673143] [2022-07-20 21:00:06,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141673143] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:06,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655360485] [2022-07-20 21:00:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:06,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:06,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 21:00:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 21:00:06,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 21:00:06,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:00:06,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655360485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:00:06,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:00:06,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-20 21:00:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492598608] [2022-07-20 21:00:06,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:00:06,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 21:00:06,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:06,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 21:00:06,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:00:06,979 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:00:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:06,988 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-07-20 21:00:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 21:00:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-07-20 21:00:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:06,989 INFO L225 Difference]: With dead ends: 48 [2022-07-20 21:00:06,989 INFO L226 Difference]: Without dead ends: 29 [2022-07-20 21:00:06,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:00:06,990 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:06,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:06,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-20 21:00:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-07-20 21:00:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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) [2022-07-20 21:00:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-07-20 21:00:06,994 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 30 [2022-07-20 21:00:06,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:06,994 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-20 21:00:06,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:00:06,994 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-07-20 21:00:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 21:00:06,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:06,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:07,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:07,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-20 21:00:07,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:07,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1540631384, now seen corresponding path program 1 times [2022-07-20 21:00:07,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:07,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963890553] [2022-07-20 21:00:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 21:00:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 21:00:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-20 21:00:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:00:07,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:07,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963890553] [2022-07-20 21:00:07,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963890553] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:07,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018592815] [2022-07-20 21:00:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:07,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:07,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:07,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:07,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 21:00:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 21:00:07,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 21:00:07,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 21:00:07,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018592815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:00:07,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 21:00:07,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-07-20 21:00:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796019995] [2022-07-20 21:00:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:00:07,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 21:00:07,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 21:00:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 21:00:07,345 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:00:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:07,353 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-07-20 21:00:07,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 21:00:07,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-07-20 21:00:07,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:07,354 INFO L225 Difference]: With dead ends: 43 [2022-07-20 21:00:07,354 INFO L226 Difference]: Without dead ends: 28 [2022-07-20 21:00:07,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 21:00:07,355 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:07,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-20 21:00:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-07-20 21:00:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-20 21:00:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-07-20 21:00:07,359 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 42 [2022-07-20 21:00:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:07,360 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-07-20 21:00:07,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-20 21:00:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-07-20 21:00:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 21:00:07,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:07,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:07,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:07,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:07,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash -180199466, now seen corresponding path program 1 times [2022-07-20 21:00:07,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:07,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583230494] [2022-07-20 21:00:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 21:00:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 21:00:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-20 21:00:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-20 21:00:07,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:07,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583230494] [2022-07-20 21:00:07,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583230494] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:07,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264137567] [2022-07-20 21:00:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:07,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:07,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:07,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:07,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 21:00:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:07,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 21:00:07,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-20 21:00:07,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-20 21:00:07,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264137567] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:07,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:07,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-07-20 21:00:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263840297] [2022-07-20 21:00:07,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:07,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 21:00:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 21:00:07,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-20 21:00:07,872 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 21:00:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:07,898 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-07-20 21:00:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 21:00:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2022-07-20 21:00:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:07,899 INFO L225 Difference]: With dead ends: 62 [2022-07-20 21:00:07,900 INFO L226 Difference]: Without dead ends: 40 [2022-07-20 21:00:07,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-20 21:00:07,901 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:07,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 70 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-20 21:00:07,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-07-20 21:00:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 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) [2022-07-20 21:00:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-07-20 21:00:07,905 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 44 [2022-07-20 21:00:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:07,905 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-07-20 21:00:07,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 21:00:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-07-20 21:00:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-20 21:00:07,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:07,906 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:07,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:08,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:08,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:08,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:08,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1875433, now seen corresponding path program 2 times [2022-07-20 21:00:08,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:08,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221192677] [2022-07-20 21:00:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:08,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 21:00:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-20 21:00:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-20 21:00:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-07-20 21:00:08,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:08,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221192677] [2022-07-20 21:00:08,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221192677] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:08,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738861246] [2022-07-20 21:00:08,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:00:08,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:08,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:08,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:08,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 21:00:08,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:00:08,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:00:08,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 21:00:08,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-20 21:00:08,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-20 21:00:08,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738861246] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:08,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:08,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2022-07-20 21:00:08,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177886744] [2022-07-20 21:00:08,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:08,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 21:00:08,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:08,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 21:00:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-20 21:00:08,449 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 21:00:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:08,483 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2022-07-20 21:00:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-20 21:00:08,484 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-20 21:00:08,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:08,484 INFO L225 Difference]: With dead ends: 78 [2022-07-20 21:00:08,484 INFO L226 Difference]: Without dead ends: 52 [2022-07-20 21:00:08,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-20 21:00:08,485 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:08,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 93 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-20 21:00:08,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2022-07-20 21:00:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.108695652173913) internal successors, (51), 46 states have internal predecessors, (51), 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) [2022-07-20 21:00:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-07-20 21:00:08,490 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 62 [2022-07-20 21:00:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:08,490 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-07-20 21:00:08,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 21:00:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-07-20 21:00:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-20 21:00:08,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:08,503 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:08,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:08,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:08,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1341943393, now seen corresponding path program 3 times [2022-07-20 21:00:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502745755] [2022-07-20 21:00:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:00:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 21:00:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-20 21:00:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-20 21:00:08,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:08,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502745755] [2022-07-20 21:00:08,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502745755] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:08,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697803326] [2022-07-20 21:00:08,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:00:08,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:08,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:08,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:08,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 21:00:08,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-20 21:00:08,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:00:08,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:00:08,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-20 21:00:08,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-20 21:00:08,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697803326] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:08,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:08,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-07-20 21:00:08,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878418036] [2022-07-20 21:00:08,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:08,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 21:00:08,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 21:00:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-20 21:00:08,916 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-20 21:00:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:08,937 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2022-07-20 21:00:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 21:00:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2022-07-20 21:00:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:08,938 INFO L225 Difference]: With dead ends: 94 [2022-07-20 21:00:08,938 INFO L226 Difference]: Without dead ends: 67 [2022-07-20 21:00:08,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-20 21:00:08,939 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:08,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 58 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-20 21:00:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-07-20 21:00:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 62 states have internal predecessors, (71), 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) [2022-07-20 21:00:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2022-07-20 21:00:08,944 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 76 [2022-07-20 21:00:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:08,945 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2022-07-20 21:00:08,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-20 21:00:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2022-07-20 21:00:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-20 21:00:08,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:08,946 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:08,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:09,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:09,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:09,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:09,168 INFO L85 PathProgramCache]: Analyzing trace with hash -28042803, now seen corresponding path program 4 times [2022-07-20 21:00:09,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:09,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183857236] [2022-07-20 21:00:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:09,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:00:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-20 21:00:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 21:00:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-20 21:00:09,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:09,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183857236] [2022-07-20 21:00:09,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183857236] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:09,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554551093] [2022-07-20 21:00:09,358 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-20 21:00:09,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:09,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:09,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:09,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 21:00:09,469 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-20 21:00:09,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:00:09,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:00:09,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 316 proven. 66 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-20 21:00:09,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-20 21:00:09,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554551093] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:09,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:09,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-20 21:00:09,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974358640] [2022-07-20 21:00:09,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:09,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:00:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:00:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:00:09,585 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:00:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:09,619 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2022-07-20 21:00:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 21:00:09,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2022-07-20 21:00:09,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:09,621 INFO L225 Difference]: With dead ends: 126 [2022-07-20 21:00:09,621 INFO L226 Difference]: Without dead ends: 83 [2022-07-20 21:00:09,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:00:09,623 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 62 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:09,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:09,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-20 21:00:09,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-07-20 21:00:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 78 states have internal predecessors, (91), 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) [2022-07-20 21:00:09,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2022-07-20 21:00:09,635 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 124 [2022-07-20 21:00:09,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:09,638 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2022-07-20 21:00:09,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-20 21:00:09,638 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2022-07-20 21:00:09,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-20 21:00:09,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:09,644 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:09,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:09,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:09,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:09,862 INFO L85 PathProgramCache]: Analyzing trace with hash -281100999, now seen corresponding path program 5 times [2022-07-20 21:00:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526171114] [2022-07-20 21:00:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:09,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:00:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 21:00:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 21:00:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-20 21:00:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:09,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526171114] [2022-07-20 21:00:09,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526171114] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:09,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595930239] [2022-07-20 21:00:09,993 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-20 21:00:09,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:09,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:09,994 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:09,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-20 21:00:10,227 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-07-20 21:00:10,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:00:10,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 21:00:10,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 850 proven. 4 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2022-07-20 21:00:10,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-20 21:00:10,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595930239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:10,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:10,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-20 21:00:10,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013512246] [2022-07-20 21:00:10,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:10,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 21:00:10,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:10,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 21:00:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-20 21:00:10,296 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:00:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:10,327 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2022-07-20 21:00:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 21:00:10,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2022-07-20 21:00:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:10,328 INFO L225 Difference]: With dead ends: 142 [2022-07-20 21:00:10,329 INFO L226 Difference]: Without dead ends: 91 [2022-07-20 21:00:10,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-20 21:00:10,329 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:10,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:10,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-20 21:00:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-20 21:00:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.1511627906976745) internal successors, (99), 86 states have internal predecessors, (99), 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) [2022-07-20 21:00:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2022-07-20 21:00:10,334 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 172 [2022-07-20 21:00:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:10,334 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2022-07-20 21:00:10,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:00:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2022-07-20 21:00:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-20 21:00:10,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:10,335 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:10,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:10,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-20 21:00:10,551 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:10,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1450203185, now seen corresponding path program 6 times [2022-07-20 21:00:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:10,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658653472] [2022-07-20 21:00:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:00:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 21:00:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 21:00:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-20 21:00:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:10,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658653472] [2022-07-20 21:00:10,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658653472] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:10,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847030621] [2022-07-20 21:00:10,692 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-20 21:00:10,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:10,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:10,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:10,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-20 21:00:10,999 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-07-20 21:00:10,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:00:11,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 21:00:11,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 850 proven. 36 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2022-07-20 21:00:11,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:00:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-20 21:00:11,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847030621] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:00:11,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:00:11,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-20 21:00:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215094269] [2022-07-20 21:00:11,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:00:11,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:00:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:00:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:00:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:00:11,078 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:00:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:00:11,100 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2022-07-20 21:00:11,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 21:00:11,101 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 180 [2022-07-20 21:00:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:00:11,103 INFO L225 Difference]: With dead ends: 148 [2022-07-20 21:00:11,103 INFO L226 Difference]: Without dead ends: 97 [2022-07-20 21:00:11,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:00:11,104 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:00:11,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 99 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:00:11,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-20 21:00:11,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-07-20 21:00:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.141304347826087) internal successors, (105), 92 states have internal predecessors, (105), 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) [2022-07-20 21:00:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2022-07-20 21:00:11,119 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 180 [2022-07-20 21:00:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:00:11,120 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2022-07-20 21:00:11,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 21:00:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2022-07-20 21:00:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-20 21:00:11,122 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:00:11,122 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:00:11,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-20 21:00:11,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-20 21:00:11,340 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:00:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:00:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1435992661, now seen corresponding path program 7 times [2022-07-20 21:00:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:00:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986902665] [2022-07-20 21:00:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:00:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:00:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:00:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 21:00:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:11,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 21:00:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 38 proven. 1214 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-07-20 21:00:11,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:00:11,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986902665] [2022-07-20 21:00:11,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986902665] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:00:11,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396057515] [2022-07-20 21:00:11,991 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-20 21:00:11,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:00:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:00:12,000 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:00:12,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-20 21:00:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:00:12,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 167 conjunts are in the unsatisfiable core [2022-07-20 21:00:12,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:00:14,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:14,708 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:14,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 146 treesize of output 116 [2022-07-20 21:00:15,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:15,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:15,839 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:15,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 141 treesize of output 118 [2022-07-20 21:00:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,084 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:16,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2022-07-20 21:00:16,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,270 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:16,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2022-07-20 21:00:16,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,528 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:16,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 98 [2022-07-20 21:00:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,747 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:16,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 86 [2022-07-20 21:00:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:16,963 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:16,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 74 [2022-07-20 21:00:17,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,152 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:17,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 62 [2022-07-20 21:00:17,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:00:17,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,329 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:17,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 50 [2022-07-20 21:00:17,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,494 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:17,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 30 [2022-07-20 21:00:17,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:00:17,584 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:00:17,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2022-07-20 21:00:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 8 proven. 1827 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-07-20 21:00:19,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:01:38,533 INFO L356 Elim1Store]: treesize reduction 432, result has 0.2 percent of original size [2022-07-20 21:01:38,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 136 treesize of output 1 [2022-07-20 21:01:43,310 INFO L356 Elim1Store]: treesize reduction 698, result has 28.4 percent of original size [2022-07-20 21:01:43,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 183 treesize of output 304 [2022-07-20 21:01:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 588 proven. 1145 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-07-20 21:01:50,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396057515] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:01:50,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 21:01:50,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 83, 72] total 163 [2022-07-20 21:01:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831839078] [2022-07-20 21:01:50,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 21:01:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2022-07-20 21:01:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:01:50,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2022-07-20 21:01:50,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1324, Invalid=25051, Unknown=31, NotChecked=0, Total=26406 [2022-07-20 21:01:50,487 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-20 21:04:16,953 WARN L233 SmtUtils]: Spent 10.47s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:04:18,987 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|))) (let ((.cse0 (select .cse5 |c_ULTIMATE.start_main_~#x~0#1.offset|)) (.cse4 (select .cse5 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 4))) (.cse1 (select .cse5 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 36)))) (and (<= .cse0 .cse1) (forall ((v_ArrVal_477 Int) (v_ArrVal_487 Int) (v_ArrVal_475 Int) (v_ArrVal_485 Int) (v_ArrVal_473 Int) (v_ArrVal_472 Int) (v_ArrVal_483 Int) (v_ArrVal_482 Int) (v_ArrVal_479 Int)) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|)) (.cse3 (* |c_ULTIMATE.start_main_~i~2#1| 4))) (or (<= |c_ULTIMATE.start_main_~temp~0#1| (select (store (store (store (store (store (store (store (store (store .cse2 (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_472) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 4) v_ArrVal_473) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 8) v_ArrVal_475) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 12) v_ArrVal_477) (+ .cse3 16 |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_479) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 20) v_ArrVal_482) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 24) v_ArrVal_483) (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 28) v_ArrVal_485) (+ .cse3 32 |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_487) (+ 32 |c_ULTIMATE.start_main_~#x~0#1.offset|))) (not (<= (select .cse2 (+ .cse3 |c_ULTIMATE.start_main_~#x~0#1.offset| 36)) v_ArrVal_487))))) (<= (+ 1 .cse4) .cse0) (= |c_ULTIMATE.start_main_~#x~0#1.offset| 0) (<= .cse4 .cse1)))) is different from false [2022-07-20 21:04:19,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:04:19,403 INFO L93 Difference]: Finished difference Result 1020 states and 1297 transitions. [2022-07-20 21:04:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 631 states. [2022-07-20 21:04:19,404 INFO L78 Accepts]: Start accepts. Automaton has has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) Word has length 186 [2022-07-20 21:04:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:04:19,414 INFO L225 Difference]: With dead ends: 1020 [2022-07-20 21:04:19,414 INFO L226 Difference]: Without dead ends: 902 [2022-07-20 21:04:19,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 698 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 185193 ImplicationChecksByTransitivity, 230.8s TimeCoverageRelationStatistics Valid=17397, Invalid=470460, Unknown=49, NotChecked=1394, Total=489300 [2022-07-20 21:04:19,455 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1370 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 6020 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 28847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 6020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22218 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:04:19,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2510 Invalid, 28847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 6020 Invalid, 0 Unknown, 22218 Unchecked, 4.1s Time] [2022-07-20 21:04:19,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-07-20 21:04:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 644. [2022-07-20 21:04:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 621 states have (on average 1.2254428341384862) internal successors, (761), 630 states have internal predecessors, (761), 10 states have call successors, (10), 3 states have call predecessors, (10), 12 states have return successors, (73), 10 states have call predecessors, (73), 10 states have call successors, (73) [2022-07-20 21:04:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 844 transitions. [2022-07-20 21:04:19,506 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 844 transitions. Word has length 186 [2022-07-20 21:04:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:04:19,506 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 844 transitions. [2022-07-20 21:04:19,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-20 21:04:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 844 transitions. [2022-07-20 21:04:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-20 21:04:19,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:04:19,512 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 28, 10, 10, 9, 9, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:04:19,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-20 21:04:19,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-20 21:04:19,713 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:04:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:04:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1427363051, now seen corresponding path program 1 times [2022-07-20 21:04:19,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:04:19,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614255808] [2022-07-20 21:04:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:04:19,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:04:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:04:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 21:04:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:04:23,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 21:04:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:04:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 21:04:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:04:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 33 proven. 1946 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-20 21:04:26,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:04:26,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614255808] [2022-07-20 21:04:26,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614255808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 21:04:26,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632569395] [2022-07-20 21:04:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:04:26,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:04:26,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:04:26,070 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 21:04:26,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-20 21:04:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:04:26,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 282 conjunts are in the unsatisfiable core [2022-07-20 21:04:26,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:04:26,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-20 21:04:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:04:34,214 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 21:04:34,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 130