./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 00:48:19,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:48:19,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:48:19,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:48:19,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:48:19,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:48:19,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:48:19,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:48:19,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:48:19,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:48:19,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:48:19,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:48:19,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:48:19,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:48:19,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:48:19,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:48:19,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:48:19,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:48:19,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:48:19,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:48:19,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:48:19,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:48:19,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:48:19,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:48:19,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:48:19,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:48:19,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:48:19,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:48:19,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:48:19,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:48:19,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:48:19,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:48:19,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:48:19,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:48:19,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:48:19,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:48:19,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:48:19,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:48:19,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:48:19,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:48:19,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:48:19,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 00:48:19,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:48:19,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:48:19,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 00:48:19,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 00:48:19,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:48:19,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:48:19,473 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 00:48:19,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:48:19,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:48:19,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:48:19,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:48:19,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:48:19,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:48:19,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 00:48:19,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:48:19,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 00:48:19,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 00:48:19,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:48:19,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 00:48:19,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2021-11-23 00:48:19,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:48:19,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:48:19,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:48:19,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:48:19,720 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:48:19,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2021-11-23 00:48:19,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a124dc9d/3e38edf930c84c858191f45ea081342a/FLAGd73c09ed1 [2021-11-23 00:48:20,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:48:20,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2021-11-23 00:48:20,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a124dc9d/3e38edf930c84c858191f45ea081342a/FLAGd73c09ed1 [2021-11-23 00:48:20,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a124dc9d/3e38edf930c84c858191f45ea081342a [2021-11-23 00:48:20,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:48:20,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:48:20,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:48:20,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:48:20,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:48:20,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:48:20" (1/1) ... [2021-11-23 00:48:20,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeac769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:20, skipping insertion in model container [2021-11-23 00:48:20,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:48:20" (1/1) ... [2021-11-23 00:48:20,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:48:20,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:48:22,032 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2021-11-23 00:48:22,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:48:22,140 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:48:22,337 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2021-11-23 00:48:22,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:48:22,408 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:48:22,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22 WrapperNode [2021-11-23 00:48:22,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:48:22,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:48:22,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:48:22,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:48:22,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,793 INFO L137 Inliner]: procedures = 221, calls = 1591, calls flagged for inlining = 403, calls inlined = 631, statements flattened = 11718 [2021-11-23 00:48:22,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:48:22,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:48:22,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:48:22,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:48:22,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:22,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:23,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:23,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:23,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:48:23,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:48:23,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:48:23,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:48:23,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (1/1) ... [2021-11-23 00:48:23,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:48:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:48:23,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 00:48:23,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 00:48:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:48:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 00:48:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:48:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:48:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:48:23,604 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:48:23,605 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:48:32,672 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:48:32,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:48:32,692 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:48:32,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:48:32 BoogieIcfgContainer [2021-11-23 00:48:32,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:48:32,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 00:48:32,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 00:48:32,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 00:48:32,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:48:20" (1/3) ... [2021-11-23 00:48:32,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff1d168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:48:32, skipping insertion in model container [2021-11-23 00:48:32,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:22" (2/3) ... [2021-11-23 00:48:32,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff1d168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:48:32, skipping insertion in model container [2021-11-23 00:48:32,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:48:32" (3/3) ... [2021-11-23 00:48:32,703 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2021-11-23 00:48:32,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 00:48:32,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 00:48:32,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 00:48:32,761 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 00:48:32,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 00:48:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 2059 states, 2053 states have (on average 1.446663419386264) internal successors, (2970), 2058 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 00:48:32,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:32,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:32,812 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash 910993047, now seen corresponding path program 1 times [2021-11-23 00:48:32,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:32,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50165759] [2021-11-23 00:48:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:32,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:33,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:33,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50165759] [2021-11-23 00:48:33,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50165759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:33,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:33,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:48:33,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362743448] [2021-11-23 00:48:33,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:33,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 00:48:33,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:33,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 00:48:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:48:33,190 INFO L87 Difference]: Start difference. First operand has 2059 states, 2053 states have (on average 1.446663419386264) internal successors, (2970), 2058 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:33,280 INFO L93 Difference]: Finished difference Result 4109 states and 5930 transitions. [2021-11-23 00:48:33,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 00:48:33,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-23 00:48:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:33,302 INFO L225 Difference]: With dead ends: 4109 [2021-11-23 00:48:33,303 INFO L226 Difference]: Without dead ends: 2045 [2021-11-23 00:48:33,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:48:33,315 INFO L933 BasicCegarLoop]: 2947 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, 2947 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:33,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2021-11-23 00:48:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2021-11-23 00:48:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2040 states have (on average 1.4377450980392157) internal successors, (2933), 2044 states have internal predecessors, (2933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2933 transitions. [2021-11-23 00:48:33,411 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2933 transitions. Word has length 68 [2021-11-23 00:48:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:33,412 INFO L470 AbstractCegarLoop]: Abstraction has 2045 states and 2933 transitions. [2021-11-23 00:48:33,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2933 transitions. [2021-11-23 00:48:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 00:48:33,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:33,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:33,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 00:48:33,419 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:33,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:33,421 INFO L85 PathProgramCache]: Analyzing trace with hash -336101979, now seen corresponding path program 1 times [2021-11-23 00:48:33,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:33,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565738031] [2021-11-23 00:48:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:33,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:33,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:33,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565738031] [2021-11-23 00:48:33,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565738031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:33,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:33,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:33,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316597978] [2021-11-23 00:48:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:33,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:33,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:33,737 INFO L87 Difference]: Start difference. First operand 2045 states and 2933 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:33,843 INFO L93 Difference]: Finished difference Result 5998 states and 8648 transitions. [2021-11-23 00:48:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:33,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-23 00:48:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:33,854 INFO L225 Difference]: With dead ends: 5998 [2021-11-23 00:48:33,854 INFO L226 Difference]: Without dead ends: 4010 [2021-11-23 00:48:33,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:33,858 INFO L933 BasicCegarLoop]: 2930 mSDtfsCounter, 2840 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:33,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2840 Valid, 5849 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2021-11-23 00:48:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 4008. [2021-11-23 00:48:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4003 states have (on average 1.4426679990007494) internal successors, (5775), 4007 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5775 transitions. [2021-11-23 00:48:33,916 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5775 transitions. Word has length 68 [2021-11-23 00:48:33,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:33,917 INFO L470 AbstractCegarLoop]: Abstraction has 4008 states and 5775 transitions. [2021-11-23 00:48:33,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5775 transitions. [2021-11-23 00:48:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:48:33,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:33,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:33,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 00:48:33,919 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:33,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1815265531, now seen corresponding path program 1 times [2021-11-23 00:48:33,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:33,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712997919] [2021-11-23 00:48:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:33,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:34,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:34,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712997919] [2021-11-23 00:48:34,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712997919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:34,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:34,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:48:34,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306249913] [2021-11-23 00:48:34,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:34,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:34,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:34,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,042 INFO L87 Difference]: Start difference. First operand 4008 states and 5775 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:34,097 INFO L93 Difference]: Finished difference Result 4008 states and 5775 transitions. [2021-11-23 00:48:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:34,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-23 00:48:34,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:34,112 INFO L225 Difference]: With dead ends: 4008 [2021-11-23 00:48:34,113 INFO L226 Difference]: Without dead ends: 4006 [2021-11-23 00:48:34,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,119 INFO L933 BasicCegarLoop]: 2930 mSDtfsCounter, 2862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:34,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2862 Valid, 2930 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2021-11-23 00:48:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 4006. [2021-11-23 00:48:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4006 states, 4002 states have (on average 1.4425287356321839) internal successors, (5773), 4005 states have internal predecessors, (5773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4006 states to 4006 states and 5773 transitions. [2021-11-23 00:48:34,282 INFO L78 Accepts]: Start accepts. Automaton has 4006 states and 5773 transitions. Word has length 71 [2021-11-23 00:48:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:34,283 INFO L470 AbstractCegarLoop]: Abstraction has 4006 states and 5773 transitions. [2021-11-23 00:48:34,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4006 states and 5773 transitions. [2021-11-23 00:48:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 00:48:34,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:34,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:34,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 00:48:34,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:34,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:34,285 INFO L85 PathProgramCache]: Analyzing trace with hash -438642583, now seen corresponding path program 1 times [2021-11-23 00:48:34,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:34,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096995862] [2021-11-23 00:48:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:34,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:34,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:34,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096995862] [2021-11-23 00:48:34,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096995862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:34,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:34,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:48:34,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031075140] [2021-11-23 00:48:34,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:34,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:34,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:34,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,400 INFO L87 Difference]: Start difference. First operand 4006 states and 5773 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:34,466 INFO L93 Difference]: Finished difference Result 4006 states and 5773 transitions. [2021-11-23 00:48:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-23 00:48:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:34,478 INFO L225 Difference]: With dead ends: 4006 [2021-11-23 00:48:34,479 INFO L226 Difference]: Without dead ends: 4004 [2021-11-23 00:48:34,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,481 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 2859 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:34,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2859 Valid, 2928 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2021-11-23 00:48:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 4004. [2021-11-23 00:48:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 4001 states have (on average 1.4423894026493376) internal successors, (5771), 4003 states have internal predecessors, (5771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5771 transitions. [2021-11-23 00:48:34,580 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5771 transitions. Word has length 72 [2021-11-23 00:48:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:34,580 INFO L470 AbstractCegarLoop]: Abstraction has 4004 states and 5771 transitions. [2021-11-23 00:48:34,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5771 transitions. [2021-11-23 00:48:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 00:48:34,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:34,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:34,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 00:48:34,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash -713004144, now seen corresponding path program 1 times [2021-11-23 00:48:34,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077294837] [2021-11-23 00:48:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:34,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:34,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:34,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077294837] [2021-11-23 00:48:34,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077294837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:34,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:34,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:48:34,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849833203] [2021-11-23 00:48:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:34,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:34,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,693 INFO L87 Difference]: Start difference. First operand 4004 states and 5771 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:34,762 INFO L93 Difference]: Finished difference Result 4004 states and 5771 transitions. [2021-11-23 00:48:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-23 00:48:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:34,774 INFO L225 Difference]: With dead ends: 4004 [2021-11-23 00:48:34,775 INFO L226 Difference]: Without dead ends: 4002 [2021-11-23 00:48:34,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,777 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 2856 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:34,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2856 Valid, 2926 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2021-11-23 00:48:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 4002. [2021-11-23 00:48:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4002 states, 4000 states have (on average 1.44225) internal successors, (5769), 4001 states have internal predecessors, (5769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 5769 transitions. [2021-11-23 00:48:34,892 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 5769 transitions. Word has length 73 [2021-11-23 00:48:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:34,892 INFO L470 AbstractCegarLoop]: Abstraction has 4002 states and 5769 transitions. [2021-11-23 00:48:34,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 5769 transitions. [2021-11-23 00:48:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:48:34,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:34,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:34,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 00:48:34,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash -628277932, now seen corresponding path program 1 times [2021-11-23 00:48:34,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873825259] [2021-11-23 00:48:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:34,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:34,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:34,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873825259] [2021-11-23 00:48:34,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873825259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:34,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:34,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:48:34,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554173288] [2021-11-23 00:48:34,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:34,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:34,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:34,993 INFO L87 Difference]: Start difference. First operand 4002 states and 5769 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:35,119 INFO L93 Difference]: Finished difference Result 7921 states and 11444 transitions. [2021-11-23 00:48:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:35,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-23 00:48:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:35,143 INFO L225 Difference]: With dead ends: 7921 [2021-11-23 00:48:35,143 INFO L226 Difference]: Without dead ends: 7910 [2021-11-23 00:48:35,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:35,148 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 2836 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:35,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2836 Valid, 5785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:35,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7910 states. [2021-11-23 00:48:35,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7910 to 7910. [2021-11-23 00:48:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7910 states, 7908 states have (on average 1.445371775417299) internal successors, (11430), 7909 states have internal predecessors, (11430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7910 states to 7910 states and 11430 transitions. [2021-11-23 00:48:35,325 INFO L78 Accepts]: Start accepts. Automaton has 7910 states and 11430 transitions. Word has length 74 [2021-11-23 00:48:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:35,326 INFO L470 AbstractCegarLoop]: Abstraction has 7910 states and 11430 transitions. [2021-11-23 00:48:35,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,326 INFO L276 IsEmpty]: Start isEmpty. Operand 7910 states and 11430 transitions. [2021-11-23 00:48:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 00:48:35,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:35,334 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:35,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 00:48:35,334 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:35,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1412933204, now seen corresponding path program 1 times [2021-11-23 00:48:35,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:35,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658290459] [2021-11-23 00:48:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:35,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:35,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:35,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658290459] [2021-11-23 00:48:35,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658290459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:35,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:35,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:35,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868435661] [2021-11-23 00:48:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:35,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:35,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:35,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:35,489 INFO L87 Difference]: Start difference. First operand 7910 states and 11430 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:35,756 INFO L93 Difference]: Finished difference Result 15916 states and 23016 transitions. [2021-11-23 00:48:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-23 00:48:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:35,771 INFO L225 Difference]: With dead ends: 15916 [2021-11-23 00:48:35,771 INFO L226 Difference]: Without dead ends: 8063 [2021-11-23 00:48:35,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:35,782 INFO L933 BasicCegarLoop]: 2938 mSDtfsCounter, 122 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 5684 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:35,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 5684 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:48:35,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2021-11-23 00:48:35,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 8054. [2021-11-23 00:48:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8054 states, 8052 states have (on average 1.4453551912568305) internal successors, (11638), 8053 states have internal predecessors, (11638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8054 states to 8054 states and 11638 transitions. [2021-11-23 00:48:35,931 INFO L78 Accepts]: Start accepts. Automaton has 8054 states and 11638 transitions. Word has length 142 [2021-11-23 00:48:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:35,931 INFO L470 AbstractCegarLoop]: Abstraction has 8054 states and 11638 transitions. [2021-11-23 00:48:35,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8054 states and 11638 transitions. [2021-11-23 00:48:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 00:48:35,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:35,939 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:35,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 00:48:35,940 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:35,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1589616352, now seen corresponding path program 1 times [2021-11-23 00:48:35,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:35,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52464343] [2021-11-23 00:48:35,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:35,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:36,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:36,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52464343] [2021-11-23 00:48:36,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52464343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:36,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:36,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:36,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389247679] [2021-11-23 00:48:36,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:36,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:36,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:36,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:36,069 INFO L87 Difference]: Start difference. First operand 8054 states and 11638 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:36,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:36,244 INFO L93 Difference]: Finished difference Result 16055 states and 23220 transitions. [2021-11-23 00:48:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:36,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-23 00:48:36,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:36,258 INFO L225 Difference]: With dead ends: 16055 [2021-11-23 00:48:36,258 INFO L226 Difference]: Without dead ends: 8058 [2021-11-23 00:48:36,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:36,267 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 0 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5847 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 [2021-11-23 00:48:36,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5847 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:36,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8058 states. [2021-11-23 00:48:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8058 to 8058. [2021-11-23 00:48:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8058 states, 8056 states have (on average 1.445134061569017) internal successors, (11642), 8057 states have internal predecessors, (11642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8058 states to 8058 states and 11642 transitions. [2021-11-23 00:48:36,403 INFO L78 Accepts]: Start accepts. Automaton has 8058 states and 11642 transitions. Word has length 155 [2021-11-23 00:48:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:36,405 INFO L470 AbstractCegarLoop]: Abstraction has 8058 states and 11642 transitions. [2021-11-23 00:48:36,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8058 states and 11642 transitions. [2021-11-23 00:48:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 00:48:36,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:36,415 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:36,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 00:48:36,415 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:36,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1019171106, now seen corresponding path program 1 times [2021-11-23 00:48:36,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:36,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34469912] [2021-11-23 00:48:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:36,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:36,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:36,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34469912] [2021-11-23 00:48:36,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34469912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:36,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:36,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:48:36,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746556321] [2021-11-23 00:48:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:36,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:36,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:48:36,564 INFO L87 Difference]: Start difference. First operand 8058 states and 11642 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:37,049 INFO L93 Difference]: Finished difference Result 31414 states and 45235 transitions. [2021-11-23 00:48:37,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:48:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-23 00:48:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:37,094 INFO L225 Difference]: With dead ends: 31414 [2021-11-23 00:48:37,094 INFO L226 Difference]: Without dead ends: 23413 [2021-11-23 00:48:37,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:37,113 INFO L933 BasicCegarLoop]: 5118 mSDtfsCounter, 8608 mSDsluCounter, 10136 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8608 SdHoareTripleChecker+Valid, 15254 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:37,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8608 Valid, 15254 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:48:37,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23413 states. [2021-11-23 00:48:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23413 to 8066. [2021-11-23 00:48:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8066 states, 8064 states have (on average 1.4446924603174602) internal successors, (11650), 8065 states have internal predecessors, (11650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8066 states to 8066 states and 11650 transitions. [2021-11-23 00:48:37,409 INFO L78 Accepts]: Start accepts. Automaton has 8066 states and 11650 transitions. Word has length 155 [2021-11-23 00:48:37,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:37,409 INFO L470 AbstractCegarLoop]: Abstraction has 8066 states and 11650 transitions. [2021-11-23 00:48:37,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:37,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8066 states and 11650 transitions. [2021-11-23 00:48:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-23 00:48:37,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:37,418 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:37,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 00:48:37,419 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash 272455028, now seen corresponding path program 1 times [2021-11-23 00:48:37,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:37,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456375355] [2021-11-23 00:48:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:37,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:37,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:37,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456375355] [2021-11-23 00:48:37,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456375355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:37,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:48:37,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321127702] [2021-11-23 00:48:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:37,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:37,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:48:37,605 INFO L87 Difference]: Start difference. First operand 8066 states and 11650 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:38,036 INFO L93 Difference]: Finished difference Result 28897 states and 41626 transitions. [2021-11-23 00:48:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 00:48:38,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-23 00:48:38,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:38,074 INFO L225 Difference]: With dead ends: 28897 [2021-11-23 00:48:38,075 INFO L226 Difference]: Without dead ends: 20888 [2021-11-23 00:48:38,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:38,089 INFO L933 BasicCegarLoop]: 5237 mSDtfsCounter, 6717 mSDsluCounter, 8154 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6717 SdHoareTripleChecker+Valid, 13391 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:38,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6717 Valid, 13391 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20888 states. [2021-11-23 00:48:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20888 to 8074. [2021-11-23 00:48:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8074 states, 8072 states have (on average 1.4442517343904857) internal successors, (11658), 8073 states have internal predecessors, (11658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8074 states to 8074 states and 11658 transitions. [2021-11-23 00:48:38,382 INFO L78 Accepts]: Start accepts. Automaton has 8074 states and 11658 transitions. Word has length 174 [2021-11-23 00:48:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:38,383 INFO L470 AbstractCegarLoop]: Abstraction has 8074 states and 11658 transitions. [2021-11-23 00:48:38,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 8074 states and 11658 transitions. [2021-11-23 00:48:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 00:48:38,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:38,392 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:38,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 00:48:38,393 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:38,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash 493992153, now seen corresponding path program 1 times [2021-11-23 00:48:38,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:38,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670022437] [2021-11-23 00:48:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:38,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:38,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:38,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670022437] [2021-11-23 00:48:38,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670022437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:38,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:38,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:38,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604619962] [2021-11-23 00:48:38,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:38,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:38,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:38,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:38,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:38,542 INFO L87 Difference]: Start difference. First operand 8074 states and 11658 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:38,745 INFO L93 Difference]: Finished difference Result 16095 states and 23260 transitions. [2021-11-23 00:48:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:38,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-23 00:48:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:38,760 INFO L225 Difference]: With dead ends: 16095 [2021-11-23 00:48:38,760 INFO L226 Difference]: Without dead ends: 8078 [2021-11-23 00:48:38,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:38,770 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 0 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5847 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 [2021-11-23 00:48:38,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5847 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8078 states. [2021-11-23 00:48:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 8078. [2021-11-23 00:48:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8078 states, 8076 states have (on average 1.4440316988608222) internal successors, (11662), 8077 states have internal predecessors, (11662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 11662 transitions. [2021-11-23 00:48:38,958 INFO L78 Accepts]: Start accepts. Automaton has 8078 states and 11662 transitions. Word has length 175 [2021-11-23 00:48:38,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:38,959 INFO L470 AbstractCegarLoop]: Abstraction has 8078 states and 11662 transitions. [2021-11-23 00:48:38,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8078 states and 11662 transitions. [2021-11-23 00:48:38,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 00:48:38,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:38,968 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:38,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 00:48:38,968 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1880777563, now seen corresponding path program 1 times [2021-11-23 00:48:38,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:38,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681597228] [2021-11-23 00:48:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:38,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:39,142 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:39,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:39,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681597228] [2021-11-23 00:48:39,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681597228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:39,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:39,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:39,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277983875] [2021-11-23 00:48:39,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:39,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:39,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:39,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:39,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:39,144 INFO L87 Difference]: Start difference. First operand 8078 states and 11662 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:39,509 INFO L93 Difference]: Finished difference Result 24112 states and 34842 transitions. [2021-11-23 00:48:39,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:39,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-23 00:48:39,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:39,538 INFO L225 Difference]: With dead ends: 24112 [2021-11-23 00:48:39,538 INFO L226 Difference]: Without dead ends: 16091 [2021-11-23 00:48:39,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:39,552 INFO L933 BasicCegarLoop]: 5282 mSDtfsCounter, 2858 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:39,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 8201 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16091 states. [2021-11-23 00:48:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16091 to 8218. [2021-11-23 00:48:39,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8218 states, 8216 states have (on average 1.4423076923076923) internal successors, (11850), 8217 states have internal predecessors, (11850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8218 states to 8218 states and 11850 transitions. [2021-11-23 00:48:39,810 INFO L78 Accepts]: Start accepts. Automaton has 8218 states and 11850 transitions. Word has length 175 [2021-11-23 00:48:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:39,810 INFO L470 AbstractCegarLoop]: Abstraction has 8218 states and 11850 transitions. [2021-11-23 00:48:39,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 8218 states and 11850 transitions. [2021-11-23 00:48:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-23 00:48:39,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:39,817 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:39,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 00:48:39,818 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1798850978, now seen corresponding path program 1 times [2021-11-23 00:48:39,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:39,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742511445] [2021-11-23 00:48:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:39,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:39,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:39,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742511445] [2021-11-23 00:48:39,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742511445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:39,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:39,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:39,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961155019] [2021-11-23 00:48:39,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:39,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:39,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:39,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:39,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:39,976 INFO L87 Difference]: Start difference. First operand 8218 states and 11850 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:40,220 INFO L93 Difference]: Finished difference Result 16383 states and 23644 transitions. [2021-11-23 00:48:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2021-11-23 00:48:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:40,234 INFO L225 Difference]: With dead ends: 16383 [2021-11-23 00:48:40,235 INFO L226 Difference]: Without dead ends: 8222 [2021-11-23 00:48:40,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:40,245 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 0 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5847 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 [2021-11-23 00:48:40,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5847 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2021-11-23 00:48:40,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 8222. [2021-11-23 00:48:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8222 states, 8220 states have (on average 1.4420924574209246) internal successors, (11854), 8221 states have internal predecessors, (11854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8222 states to 8222 states and 11854 transitions. [2021-11-23 00:48:40,505 INFO L78 Accepts]: Start accepts. Automaton has 8222 states and 11854 transitions. Word has length 176 [2021-11-23 00:48:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:40,505 INFO L470 AbstractCegarLoop]: Abstraction has 8222 states and 11854 transitions. [2021-11-23 00:48:40,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8222 states and 11854 transitions. [2021-11-23 00:48:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-23 00:48:40,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:40,513 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:40,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 00:48:40,513 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:40,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash -140311068, now seen corresponding path program 1 times [2021-11-23 00:48:40,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:40,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176282257] [2021-11-23 00:48:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:40,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:40,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:40,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176282257] [2021-11-23 00:48:40,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176282257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:40,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:40,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:48:40,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330045431] [2021-11-23 00:48:40,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:40,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:40,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:40,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:48:40,682 INFO L87 Difference]: Start difference. First operand 8222 states and 11854 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:41,324 INFO L93 Difference]: Finished difference Result 32230 states and 46407 transitions. [2021-11-23 00:48:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:48:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2021-11-23 00:48:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:41,357 INFO L225 Difference]: With dead ends: 32230 [2021-11-23 00:48:41,357 INFO L226 Difference]: Without dead ends: 24065 [2021-11-23 00:48:41,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:41,371 INFO L933 BasicCegarLoop]: 5300 mSDtfsCounter, 8790 mSDsluCounter, 10332 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8790 SdHoareTripleChecker+Valid, 15632 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:41,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8790 Valid, 15632 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:41,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24065 states. [2021-11-23 00:48:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24065 to 8230. [2021-11-23 00:48:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8230 states, 8228 states have (on average 1.441662615459407) internal successors, (11862), 8229 states have internal predecessors, (11862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8230 states to 8230 states and 11862 transitions. [2021-11-23 00:48:41,673 INFO L78 Accepts]: Start accepts. Automaton has 8230 states and 11862 transitions. Word has length 176 [2021-11-23 00:48:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:41,674 INFO L470 AbstractCegarLoop]: Abstraction has 8230 states and 11862 transitions. [2021-11-23 00:48:41,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 8230 states and 11862 transitions. [2021-11-23 00:48:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 00:48:41,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:41,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:41,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 00:48:41,681 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:41,681 INFO L85 PathProgramCache]: Analyzing trace with hash -325655565, now seen corresponding path program 1 times [2021-11-23 00:48:41,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:41,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867970960] [2021-11-23 00:48:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:41,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:41,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:41,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867970960] [2021-11-23 00:48:41,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867970960] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:48:41,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794236846] [2021-11-23 00:48:41,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:41,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:48:41,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:48:41,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 00:48:41,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 00:48:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:42,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:48:42,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:48:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:42,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 00:48:42,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794236846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:42,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 00:48:42,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-23 00:48:42,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904435642] [2021-11-23 00:48:42,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:42,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:42,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 00:48:42,957 INFO L87 Difference]: Start difference. First operand 8230 states and 11862 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:43,221 INFO L93 Difference]: Finished difference Result 12385 states and 17854 transitions. [2021-11-23 00:48:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:48:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-23 00:48:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:43,233 INFO L225 Difference]: With dead ends: 12385 [2021-11-23 00:48:43,233 INFO L226 Difference]: Without dead ends: 8246 [2021-11-23 00:48:43,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 00:48:43,239 INFO L933 BasicCegarLoop]: 2924 mSDtfsCounter, 3 mSDsluCounter, 5844 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8768 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:43,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 8768 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2021-11-23 00:48:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 8238. [2021-11-23 00:48:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8238 states, 8236 states have (on average 1.4412336085478388) internal successors, (11870), 8237 states have internal predecessors, (11870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8238 states to 8238 states and 11870 transitions. [2021-11-23 00:48:43,458 INFO L78 Accepts]: Start accepts. Automaton has 8238 states and 11870 transitions. Word has length 177 [2021-11-23 00:48:43,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:43,458 INFO L470 AbstractCegarLoop]: Abstraction has 8238 states and 11870 transitions. [2021-11-23 00:48:43,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:43,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8238 states and 11870 transitions. [2021-11-23 00:48:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 00:48:43,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:43,465 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:43,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 00:48:43,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 00:48:43,678 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:43,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:43,678 INFO L85 PathProgramCache]: Analyzing trace with hash 518349937, now seen corresponding path program 1 times [2021-11-23 00:48:43,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:43,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341479703] [2021-11-23 00:48:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:43,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:43,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:43,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341479703] [2021-11-23 00:48:43,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341479703] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:48:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974481563] [2021-11-23 00:48:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:43,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:48:43,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:48:43,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 00:48:43,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 00:48:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 3578 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:48:44,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:48:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:44,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 00:48:44,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974481563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:44,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 00:48:44,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-23 00:48:44,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497944274] [2021-11-23 00:48:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:44,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:44,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:44,930 INFO L87 Difference]: Start difference. First operand 8238 states and 11870 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:45,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:45,528 INFO L93 Difference]: Finished difference Result 24605 states and 35486 transitions. [2021-11-23 00:48:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 00:48:45,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-23 00:48:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:45,567 INFO L225 Difference]: With dead ends: 24605 [2021-11-23 00:48:45,567 INFO L226 Difference]: Without dead ends: 24596 [2021-11-23 00:48:45,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:45,577 INFO L933 BasicCegarLoop]: 5771 mSDtfsCounter, 5670 mSDsluCounter, 5772 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5670 SdHoareTripleChecker+Valid, 11543 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:45,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5670 Valid, 11543 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24596 states. [2021-11-23 00:48:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24596 to 24306. [2021-11-23 00:48:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24306 states, 24304 states have (on average 1.4459348255431206) internal successors, (35142), 24305 states have internal predecessors, (35142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24306 states to 24306 states and 35142 transitions. [2021-11-23 00:48:46,363 INFO L78 Accepts]: Start accepts. Automaton has 24306 states and 35142 transitions. Word has length 177 [2021-11-23 00:48:46,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:46,363 INFO L470 AbstractCegarLoop]: Abstraction has 24306 states and 35142 transitions. [2021-11-23 00:48:46,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:46,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24306 states and 35142 transitions. [2021-11-23 00:48:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 00:48:46,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:46,382 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:46,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 00:48:46,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 00:48:46,599 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:46,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:46,599 INFO L85 PathProgramCache]: Analyzing trace with hash -761513741, now seen corresponding path program 1 times [2021-11-23 00:48:46,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430150903] [2021-11-23 00:48:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:46,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:46,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:46,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430150903] [2021-11-23 00:48:46,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430150903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:46,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:46,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:48:46,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262960523] [2021-11-23 00:48:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:46,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:48:46,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:46,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:48:46,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:48:46,770 INFO L87 Difference]: Start difference. First operand 24306 states and 35142 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:48,205 INFO L93 Difference]: Finished difference Result 69633 states and 100645 transitions. [2021-11-23 00:48:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:48:48,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-23 00:48:48,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:48,312 INFO L225 Difference]: With dead ends: 69633 [2021-11-23 00:48:48,313 INFO L226 Difference]: Without dead ends: 57464 [2021-11-23 00:48:48,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:48:48,343 INFO L933 BasicCegarLoop]: 5051 mSDtfsCounter, 5059 mSDsluCounter, 5785 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 10836 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:48,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5059 Valid, 10836 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57464 states. [2021-11-23 00:48:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57464 to 24310. [2021-11-23 00:48:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24310 states, 24308 states have (on average 1.445861444791838) internal successors, (35146), 24309 states have internal predecessors, (35146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24310 states to 24310 states and 35146 transitions. [2021-11-23 00:48:49,364 INFO L78 Accepts]: Start accepts. Automaton has 24310 states and 35146 transitions. Word has length 177 [2021-11-23 00:48:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:49,365 INFO L470 AbstractCegarLoop]: Abstraction has 24310 states and 35146 transitions. [2021-11-23 00:48:49,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24310 states and 35146 transitions. [2021-11-23 00:48:49,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-23 00:48:49,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:49,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:49,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 00:48:49,385 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash 815428420, now seen corresponding path program 1 times [2021-11-23 00:48:49,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:49,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026215804] [2021-11-23 00:48:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:49,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:49,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:49,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026215804] [2021-11-23 00:48:49,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026215804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:49,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:49,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:48:49,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523494831] [2021-11-23 00:48:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:49,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:48:49,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:48:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:49,568 INFO L87 Difference]: Start difference. First operand 24310 states and 35146 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:50,999 INFO L93 Difference]: Finished difference Result 72816 states and 105310 transitions. [2021-11-23 00:48:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:48:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-11-23 00:48:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:51,077 INFO L225 Difference]: With dead ends: 72816 [2021-11-23 00:48:51,077 INFO L226 Difference]: Without dead ends: 48563 [2021-11-23 00:48:51,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:48:51,106 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 2860 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 7966 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 [2021-11-23 00:48:51,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 7966 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:48:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48563 states. [2021-11-23 00:48:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48563 to 24322. [2021-11-23 00:48:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24322 states, 24320 states have (on average 1.4456414473684212) internal successors, (35158), 24321 states have internal predecessors, (35158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24322 states to 24322 states and 35158 transitions. [2021-11-23 00:48:52,228 INFO L78 Accepts]: Start accepts. Automaton has 24322 states and 35158 transitions. Word has length 179 [2021-11-23 00:48:52,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:52,228 INFO L470 AbstractCegarLoop]: Abstraction has 24322 states and 35158 transitions. [2021-11-23 00:48:52,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24322 states and 35158 transitions. [2021-11-23 00:48:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 00:48:52,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:52,247 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:52,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 00:48:52,248 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash -692396765, now seen corresponding path program 1 times [2021-11-23 00:48:52,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:52,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421498684] [2021-11-23 00:48:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:52,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:52,549 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:52,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:52,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421498684] [2021-11-23 00:48:52,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421498684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:52,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:52,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 00:48:52,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593383209] [2021-11-23 00:48:52,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:52,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 00:48:52,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:52,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 00:48:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 00:48:52,553 INFO L87 Difference]: Start difference. First operand 24322 states and 35158 transitions. Second operand has 8 states, 8 states have (on average 22.375) internal successors, (179), 8 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:48:56,013 INFO L93 Difference]: Finished difference Result 108962 states and 157320 transitions. [2021-11-23 00:48:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 00:48:56,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.375) internal successors, (179), 8 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-11-23 00:48:56,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:48:56,162 INFO L225 Difference]: With dead ends: 108962 [2021-11-23 00:48:56,163 INFO L226 Difference]: Without dead ends: 84697 [2021-11-23 00:48:56,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-23 00:48:56,205 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 29325 mSDsluCounter, 28946 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29325 SdHoareTripleChecker+Valid, 34722 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:48:56,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29325 Valid, 34722 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:48:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84697 states. [2021-11-23 00:48:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84697 to 24370. [2021-11-23 00:48:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24370 states, 24368 states have (on average 1.444763624425476) internal successors, (35206), 24369 states have internal predecessors, (35206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24370 states to 24370 states and 35206 transitions. [2021-11-23 00:48:57,763 INFO L78 Accepts]: Start accepts. Automaton has 24370 states and 35206 transitions. Word has length 181 [2021-11-23 00:48:57,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:48:57,764 INFO L470 AbstractCegarLoop]: Abstraction has 24370 states and 35206 transitions. [2021-11-23 00:48:57,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.375) internal successors, (179), 8 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:48:57,765 INFO L276 IsEmpty]: Start isEmpty. Operand 24370 states and 35206 transitions. [2021-11-23 00:48:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-23 00:48:57,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:48:57,781 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:48:57,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 00:48:57,795 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:48:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash 466476258, now seen corresponding path program 1 times [2021-11-23 00:48:57,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:48:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349674400] [2021-11-23 00:48:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:48:57,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:48:58,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:48:58,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349674400] [2021-11-23 00:48:58,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349674400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:48:58,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:48:58,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 00:48:58,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818458505] [2021-11-23 00:48:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:48:58,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 00:48:58,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:48:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 00:48:58,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 00:48:58,059 INFO L87 Difference]: Start difference. First operand 24370 states and 35206 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:49:03,093 INFO L93 Difference]: Finished difference Result 109058 states and 157416 transitions. [2021-11-23 00:49:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 00:49:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-11-23 00:49:03,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:49:03,239 INFO L225 Difference]: With dead ends: 109058 [2021-11-23 00:49:03,239 INFO L226 Difference]: Without dead ends: 84745 [2021-11-23 00:49:03,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-23 00:49:03,277 INFO L933 BasicCegarLoop]: 5793 mSDtfsCounter, 29305 mSDsluCounter, 28949 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29305 SdHoareTripleChecker+Valid, 34742 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:49:03,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29305 Valid, 34742 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:49:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84745 states. [2021-11-23 00:49:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84745 to 24370. [2021-11-23 00:49:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24370 states, 24368 states have (on average 1.444763624425476) internal successors, (35206), 24369 states have internal predecessors, (35206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24370 states to 24370 states and 35206 transitions. [2021-11-23 00:49:05,077 INFO L78 Accepts]: Start accepts. Automaton has 24370 states and 35206 transitions. Word has length 187 [2021-11-23 00:49:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:49:05,077 INFO L470 AbstractCegarLoop]: Abstraction has 24370 states and 35206 transitions. [2021-11-23 00:49:05,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 24370 states and 35206 transitions. [2021-11-23 00:49:05,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-23 00:49:05,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:49:05,095 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:49:05,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 00:49:05,095 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:49:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:49:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -48814380, now seen corresponding path program 1 times [2021-11-23 00:49:05,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:49:05,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620490134] [2021-11-23 00:49:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:05,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:49:05,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:49:05,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620490134] [2021-11-23 00:49:05,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620490134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:49:05,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:49:05,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 00:49:05,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267285506] [2021-11-23 00:49:05,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:49:05,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 00:49:05,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:49:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 00:49:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 00:49:05,329 INFO L87 Difference]: Start difference. First operand 24370 states and 35206 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:49:11,396 INFO L93 Difference]: Finished difference Result 107570 states and 155184 transitions. [2021-11-23 00:49:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 00:49:11,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-11-23 00:49:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:49:11,534 INFO L225 Difference]: With dead ends: 107570 [2021-11-23 00:49:11,534 INFO L226 Difference]: Without dead ends: 83257 [2021-11-23 00:49:11,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-23 00:49:11,572 INFO L933 BasicCegarLoop]: 5593 mSDtfsCounter, 22103 mSDsluCounter, 25255 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22103 SdHoareTripleChecker+Valid, 30848 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 00:49:11,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22103 Valid, 30848 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 00:49:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83257 states. [2021-11-23 00:49:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83257 to 24430. [2021-11-23 00:49:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24430 states, 24428 states have (on average 1.443671196987064) internal successors, (35266), 24429 states have internal predecessors, (35266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24430 states to 24430 states and 35266 transitions. [2021-11-23 00:49:13,731 INFO L78 Accepts]: Start accepts. Automaton has 24430 states and 35266 transitions. Word has length 187 [2021-11-23 00:49:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:49:13,733 INFO L470 AbstractCegarLoop]: Abstraction has 24430 states and 35266 transitions. [2021-11-23 00:49:13,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 24430 states and 35266 transitions. [2021-11-23 00:49:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-23 00:49:13,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:49:13,779 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:49:13,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 00:49:13,780 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:49:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:49:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1962145892, now seen corresponding path program 1 times [2021-11-23 00:49:13,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:49:13,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874032426] [2021-11-23 00:49:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:13,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:49:14,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:49:14,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874032426] [2021-11-23 00:49:14,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874032426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:49:14,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:49:14,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 00:49:14,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104702063] [2021-11-23 00:49:14,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:49:14,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 00:49:14,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:49:14,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 00:49:14,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:49:14,104 INFO L87 Difference]: Start difference. First operand 24430 states and 35266 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:16,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:19,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:49:22,014 INFO L93 Difference]: Finished difference Result 36923 states and 53289 transitions. [2021-11-23 00:49:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:49:22,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2021-11-23 00:49:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:49:22,048 INFO L225 Difference]: With dead ends: 36923 [2021-11-23 00:49:22,048 INFO L226 Difference]: Without dead ends: 24672 [2021-11-23 00:49:22,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 00:49:22,061 INFO L933 BasicCegarLoop]: 2927 mSDtfsCounter, 57 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 8258 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-23 00:49:22,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 8258 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-11-23 00:49:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2021-11-23 00:49:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24598. [2021-11-23 00:49:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24598 states, 24596 states have (on average 1.444055944055944) internal successors, (35518), 24597 states have internal predecessors, (35518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24598 states to 24598 states and 35518 transitions. [2021-11-23 00:49:23,731 INFO L78 Accepts]: Start accepts. Automaton has 24598 states and 35518 transitions. Word has length 193 [2021-11-23 00:49:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:49:23,731 INFO L470 AbstractCegarLoop]: Abstraction has 24598 states and 35518 transitions. [2021-11-23 00:49:23,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 24598 states and 35518 transitions. [2021-11-23 00:49:23,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-23 00:49:23,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:49:23,792 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:49:23,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 00:49:23,792 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:49:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:49:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2034532450, now seen corresponding path program 1 times [2021-11-23 00:49:23,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:49:23,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593773909] [2021-11-23 00:49:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:23,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 00:49:24,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:49:24,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593773909] [2021-11-23 00:49:24,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593773909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:49:24,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:49:24,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:49:24,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020542712] [2021-11-23 00:49:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:49:24,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:49:24,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:49:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:49:24,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:49:24,463 INFO L87 Difference]: Start difference. First operand 24598 states and 35518 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:49:26,177 INFO L93 Difference]: Finished difference Result 49166 states and 71011 transitions. [2021-11-23 00:49:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:49:26,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2021-11-23 00:49:26,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:49:26,219 INFO L225 Difference]: With dead ends: 49166 [2021-11-23 00:49:26,219 INFO L226 Difference]: Without dead ends: 24604 [2021-11-23 00:49:26,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:49:26,251 INFO L933 BasicCegarLoop]: 2921 mSDtfsCounter, 0 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5803 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:49:26,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5803 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:49:26,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24604 states. [2021-11-23 00:49:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24604 to 24604. [2021-11-23 00:49:27,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24602 states have (on average 1.4439476465328023) internal successors, (35524), 24603 states have internal predecessors, (35524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:27,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 35524 transitions. [2021-11-23 00:49:27,947 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 35524 transitions. Word has length 193 [2021-11-23 00:49:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:49:27,947 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 35524 transitions. [2021-11-23 00:49:27,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 35524 transitions. [2021-11-23 00:49:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 00:49:27,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:49:27,963 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:49:27,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 00:49:27,963 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:49:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:49:27,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1631696862, now seen corresponding path program 1 times [2021-11-23 00:49:27,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:49:27,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489925081] [2021-11-23 00:49:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:27,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 00:49:28,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:49:28,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489925081] [2021-11-23 00:49:28,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489925081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:49:28,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:49:28,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:49:28,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583367838] [2021-11-23 00:49:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:49:28,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:49:28,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:49:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:49:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:49:28,447 INFO L87 Difference]: Start difference. First operand 24604 states and 35524 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:49:31,587 INFO L93 Difference]: Finished difference Result 67278 states and 97079 transitions. [2021-11-23 00:49:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 00:49:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2021-11-23 00:49:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:49:31,654 INFO L225 Difference]: With dead ends: 67278 [2021-11-23 00:49:31,654 INFO L226 Difference]: Without dead ends: 42737 [2021-11-23 00:49:31,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:49:31,677 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 2848 mSDsluCounter, 7289 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 12359 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:49:31,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2848 Valid, 12359 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:49:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42737 states. [2021-11-23 00:49:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42737 to 24616. [2021-11-23 00:49:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24616 states, 24614 states have (on average 1.4437312098805557) internal successors, (35536), 24615 states have internal predecessors, (35536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:33,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24616 states to 24616 states and 35536 transitions. [2021-11-23 00:49:33,614 INFO L78 Accepts]: Start accepts. Automaton has 24616 states and 35536 transitions. Word has length 199 [2021-11-23 00:49:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:49:33,614 INFO L470 AbstractCegarLoop]: Abstraction has 24616 states and 35536 transitions. [2021-11-23 00:49:33,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:49:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 24616 states and 35536 transitions. [2021-11-23 00:49:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-23 00:49:33,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:49:33,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:49:33,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 00:49:33,630 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:49:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:49:33,630 INFO L85 PathProgramCache]: Analyzing trace with hash 980245757, now seen corresponding path program 1 times [2021-11-23 00:49:33,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:49:33,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464694527] [2021-11-23 00:49:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:33,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 00:49:34,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:49:34,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464694527] [2021-11-23 00:49:34,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464694527] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:49:34,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379646438] [2021-11-23 00:49:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:49:34,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:49:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:49:34,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 00:49:34,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 00:49:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:35,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 3883 conjuncts, 232 conjunts are in the unsatisfiable core [2021-11-23 00:49:35,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:49:35,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 00:49:35,938 INFO L354 Elim1Store]: treesize reduction 139, result has 24.9 percent of original size [2021-11-23 00:49:35,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 63 [2021-11-23 00:49:36,676 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 00:49:36,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 00:49:37,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 579 treesize of output 607 [2021-11-23 00:49:37,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,228 INFO L354 Elim1Store]: treesize reduction 716, result has 2.1 percent of original size [2021-11-23 00:49:37,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1166 treesize of output 1009 [2021-11-23 00:49:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:37,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 80 [2021-11-23 00:49:39,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 00:49:39,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 459 treesize of output 447 [2021-11-23 00:49:39,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 00:49:39,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 444 treesize of output 336 [2021-11-23 00:49:40,697 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 00:49:40,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 173 treesize of output 154 [2021-11-23 00:49:40,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-23 00:49:40,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-23 00:49:41,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:41,528 INFO L354 Elim1Store]: treesize reduction 127, result has 6.6 percent of original size [2021-11-23 00:49:41,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 295 treesize of output 169 [2021-11-23 00:49:45,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:45,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:45,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:45,210 INFO L354 Elim1Store]: treesize reduction 160, result has 18.8 percent of original size [2021-11-23 00:49:45,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 293 treesize of output 163 [2021-11-23 00:49:49,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:49,129 INFO L354 Elim1Store]: treesize reduction 182, result has 4.7 percent of original size [2021-11-23 00:49:49,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 300 treesize of output 178 [2021-11-23 00:49:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:49:55,746 INFO L354 Elim1Store]: treesize reduction 83, result has 9.8 percent of original size [2021-11-23 00:49:55,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 290 treesize of output 160 [2021-11-23 00:49:59,967 INFO L354 Elim1Store]: treesize reduction 94, result has 31.4 percent of original size [2021-11-23 00:49:59,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 322 treesize of output 306 [2021-11-23 00:50:00,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 302 [2021-11-23 00:50:01,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-23 00:50:01,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-23 00:50:02,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 286 [2021-11-23 00:50:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:02,325 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-11-23 00:50:02,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 478 treesize of output 480 [2021-11-23 00:50:02,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 00:50:02,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 00:50:04,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:04,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:50:04,444 INFO L354 Elim1Store]: treesize reduction 304, result has 12.6 percent of original size [2021-11-23 00:50:04,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 298 treesize of output 172 [2021-11-23 00:50:05,494 INFO L354 Elim1Store]: treesize reduction 196, result has 15.9 percent of original size [2021-11-23 00:50:05,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 325 treesize of output 198 [2021-11-23 00:50:05,524 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 00:50:05,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 315 treesize of output 274 [2021-11-23 00:50:05,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-23 00:50:05,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-23 00:50:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:50:14,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 00:50:14,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379646438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:50:14,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 00:50:14,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4] total 33 [2021-11-23 00:50:14,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657377866] [2021-11-23 00:50:14,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:50:14,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-23 00:50:14,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:50:14,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-23 00:50:14,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 00:50:14,730 INFO L87 Difference]: Start difference. First operand 24616 states and 35536 transitions. Second operand has 31 states, 31 states have (on average 6.516129032258065) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:50:19,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:50:20,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:50:33,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:50:35,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:50:53,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:50:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:50:56,045 INFO L93 Difference]: Finished difference Result 56577 states and 81377 transitions. [2021-11-23 00:50:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-23 00:50:56,046 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.516129032258065) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-11-23 00:50:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:50:56,107 INFO L225 Difference]: With dead ends: 56577 [2021-11-23 00:50:56,108 INFO L226 Difference]: Without dead ends: 44140 [2021-11-23 00:50:56,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=587, Invalid=2383, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 00:50:56,131 INFO L933 BasicCegarLoop]: 2858 mSDtfsCounter, 13884 mSDsluCounter, 60798 mSDsCounter, 0 mSdLazyCounter, 4526 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13884 SdHoareTripleChecker+Valid, 63656 SdHoareTripleChecker+Invalid, 8197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3571 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-23 00:50:56,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13884 Valid, 63656 Invalid, 8197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 4526 Invalid, 0 Unknown, 3571 Unchecked, 25.9s Time] [2021-11-23 00:50:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44140 states. [2021-11-23 00:50:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44140 to 42828. [2021-11-23 00:50:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42828 states, 42826 states have (on average 1.4418577499649745) internal successors, (61749), 42827 states have internal predecessors, (61749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:50:59,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42828 states to 42828 states and 61749 transitions. [2021-11-23 00:50:59,688 INFO L78 Accepts]: Start accepts. Automaton has 42828 states and 61749 transitions. Word has length 202 [2021-11-23 00:50:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:50:59,689 INFO L470 AbstractCegarLoop]: Abstraction has 42828 states and 61749 transitions. [2021-11-23 00:50:59,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.516129032258065) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:50:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 42828 states and 61749 transitions. [2021-11-23 00:50:59,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-23 00:50:59,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:50:59,733 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:50:59,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 00:50:59,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:50:59,948 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 00:50:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:50:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash -133203329, now seen corresponding path program 1 times [2021-11-23 00:50:59,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:50:59,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483080275] [2021-11-23 00:50:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:50:59,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 00:51:00,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:51:00,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483080275] [2021-11-23 00:51:00,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483080275] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:51:00,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076171335] [2021-11-23 00:51:00,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:51:00,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:51:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:51:00,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 00:51:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 00:51:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:02,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 3886 conjuncts, 542 conjunts are in the unsatisfiable core [2021-11-23 00:51:02,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:51:02,665 INFO L354 Elim1Store]: treesize reduction 984, result has 6.9 percent of original size [2021-11-23 00:51:02,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 51 case distinctions, treesize of input 35043 treesize of output 35013 [2021-11-23 00:51:03,247 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 00:51:03,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34964 treesize of output 34966 [2021-11-23 00:51:05,227 INFO L354 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2021-11-23 00:51:05,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 89 treesize of output 106 [2021-11-23 00:51:05,250 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-23 00:51:05,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 88 [2021-11-23 00:51:06,913 INFO L354 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2021-11-23 00:51:06,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 105 treesize of output 122 [2021-11-23 00:51:06,953 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 00:51:06,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 111 [2021-11-23 00:51:07,904 INFO L354 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2021-11-23 00:51:07,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 88 treesize of output 105 [2021-11-23 00:51:07,940 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 00:51:07,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 87 [2021-11-23 00:51:09,708 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-23 00:51:09,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 91 [2021-11-23 00:51:09,775 INFO L354 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2021-11-23 00:51:09,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 88 treesize of output 105 [2021-11-23 00:51:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:51:12,626 INFO L354 Elim1Store]: treesize reduction 148, result has 18.2 percent of original size [2021-11-23 00:51:12,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 108 treesize of output 132 [2021-11-23 00:51:12,681 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-23 00:51:12,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 114 [2021-11-23 00:51:17,689 INFO L354 Elim1Store]: treesize reduction 170, result has 18.3 percent of original size [2021-11-23 00:51:17,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 124 treesize of output 148 [2021-11-23 00:51:17,765 INFO L354 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2021-11-23 00:51:17,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 137 [2021-11-23 00:51:24,064 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-23 00:51:24,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 121 [2021-11-23 00:51:24,207 INFO L354 Elim1Store]: treesize reduction 162, result has 22.1 percent of original size [2021-11-23 00:51:24,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 115 treesize of output 147 [2021-11-23 00:51:39,221 INFO L354 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2021-11-23 00:51:39,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 165 [2021-11-23 00:51:50,963 INFO L354 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2021-11-23 00:51:50,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 180 treesize of output 192 [2021-11-23 00:52:28,633 INFO L354 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2021-11-23 00:52:28,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 201 [2021-11-23 00:52:51,898 INFO L354 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2021-11-23 00:52:51,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 185 [2021-11-23 00:53:23,670 INFO L354 Elim1Store]: treesize reduction 66, result has 22.4 percent of original size [2021-11-23 00:53:23,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 151 treesize of output 165 [2021-11-23 00:53:23,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 00:54:10,821 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-23 00:54:10,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 164 treesize of output 179 [2021-11-23 00:56:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:56:02,396 INFO L354 Elim1Store]: treesize reduction 81, result has 19.8 percent of original size [2021-11-23 00:56:02,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 153 treesize of output 168 [2021-11-23 00:56:02,570 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-23 00:56:02,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 159 treesize of output 176 [2021-11-23 00:56:02,653 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 00:57:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 00:58:00,923 INFO L354 Elim1Store]: treesize reduction 690, result has 12.3 percent of original size [2021-11-23 00:58:00,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 31 case distinctions, treesize of input 174 treesize of output 246 Killed by 15