./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.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 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:37:52,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:37:52,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:37:52,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:37:52,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:37:52,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:37:52,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:37:52,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:37:52,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:37:52,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:37:52,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:37:52,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:37:52,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:37:52,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:37:52,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:37:52,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:37:52,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:37:52,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:37:52,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:37:52,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:37:52,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:37:52,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:37:52,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:37:52,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:37:52,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:37:52,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:37:52,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:37:52,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:37:52,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:37:52,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:37:52,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:37:52,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:37:52,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:37:52,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:37:52,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:37:52,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:37:52,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:37:52,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:37:52,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:37:52,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:37:52,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:37:52,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:37:52,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:37:52,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:37:52,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:37:52,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:37:52,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:37:52,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:37:52,723 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:37:52,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:37:52,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:37:52,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:37:52,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:37:52,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:37:52,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:37:52,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:37:52,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:37:52,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:37:52,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:37:52,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:37:52,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:37:52,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:37:52,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:37:52,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:37:52,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:37:52,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:37:52,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:37:52,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:37:52,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:37:52,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:37:52,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:37:52,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2021-11-07 18:37:52,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:37:52,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:37:52,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:37:52,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:37:52,943 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:37:52,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-07 18:37:53,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e744d39/ab4d1f995c3442e5b72ec10894d38d4e/FLAGec5852c6d [2021-11-07 18:37:53,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:37:53,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-07 18:37:53,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e744d39/ab4d1f995c3442e5b72ec10894d38d4e/FLAGec5852c6d [2021-11-07 18:37:53,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e744d39/ab4d1f995c3442e5b72ec10894d38d4e [2021-11-07 18:37:53,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:37:53,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:37:53,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:37:53,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:37:53,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:37:53,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:37:53" (1/1) ... [2021-11-07 18:37:53,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438c3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:53, skipping insertion in model container [2021-11-07 18:37:53,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:37:53" (1/1) ... [2021-11-07 18:37:53,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:37:53,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:37:55,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-07 18:37:55,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-07 18:37:55,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:37:55,509 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:37:55,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-07 18:37:55,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-07 18:37:55,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:37:55,829 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:37:55,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55 WrapperNode [2021-11-07 18:37:55,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:37:55,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:37:55,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:37:55,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:37:55,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:55,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:37:56,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:37:56,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:37:56,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:37:56,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:37:56,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:37:56,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:37:56,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:37:56,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (1/1) ... [2021-11-07 18:37:56,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:37:56,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:37:56,629 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) [2021-11-07 18:37:56,670 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 [2021-11-07 18:37:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:37:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 18:37:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:37:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:37:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:39:15,590 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 18:39:15,590 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 18:39:15,590 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-07 18:39:15,590 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 18:39:15,591 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 18:39:15,591 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:39:15,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:39:15,614 INFO L299 CfgBuilder]: Removed 2043 assume(true) statements. [2021-11-07 18:39:15,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:39:15 BoogieIcfgContainer [2021-11-07 18:39:15,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:39:15,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:39:15,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:39:15,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:39:15,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:37:53" (1/3) ... [2021-11-07 18:39:15,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b25e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:39:15, skipping insertion in model container [2021-11-07 18:39:15,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:37:55" (2/3) ... [2021-11-07 18:39:15,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b25e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:39:15, skipping insertion in model container [2021-11-07 18:39:15,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:39:15" (3/3) ... [2021-11-07 18:39:15,626 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-07 18:39:15,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:39:15,629 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-07 18:39:15,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:39:15,667 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 [2021-11-07 18:39:15,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-07 18:39:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 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) [2021-11-07 18:39:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 18:39:15,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:15,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:39:15,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:15,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:15,712 INFO L85 PathProgramCache]: Analyzing trace with hash 949678794, now seen corresponding path program 1 times [2021-11-07 18:39:15,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:15,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241054173] [2021-11-07 18:39:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:15,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:16,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:16,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241054173] [2021-11-07 18:39:16,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241054173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:16,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:16,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:16,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926833034] [2021-11-07 18:39:16,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:16,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:16,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:16,518 INFO L87 Difference]: Start difference. First operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 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 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-07 18:39:18,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:19,233 INFO L93 Difference]: Finished difference Result 5701 states and 8063 transitions. [2021-11-07 18:39:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-07 18:39:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:19,255 INFO L225 Difference]: With dead ends: 5701 [2021-11-07 18:39:19,255 INFO L226 Difference]: Without dead ends: 3123 [2021-11-07 18:39:19,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:19,264 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 1508 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2438.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.08ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2553.64ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:19,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 6293 Invalid, 64 Unknown, 0 Unchecked, 15.08ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2553.64ms Time] [2021-11-07 18:39:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2021-11-07 18:39:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3097. [2021-11-07 18:39:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3071 states have (on average 1.3497232171930966) internal successors, (4145), 3096 states have internal predecessors, (4145), 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) [2021-11-07 18:39:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4145 transitions. [2021-11-07 18:39:19,360 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4145 transitions. Word has length 93 [2021-11-07 18:39:19,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:19,360 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 4145 transitions. [2021-11-07 18:39:19,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-07 18:39:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4145 transitions. [2021-11-07 18:39:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 18:39:19,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:19,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:39:19,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:39:19,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:19,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:19,365 INFO L85 PathProgramCache]: Analyzing trace with hash 591792664, now seen corresponding path program 1 times [2021-11-07 18:39:19,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:19,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402528140] [2021-11-07 18:39:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:19,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:19,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:19,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402528140] [2021-11-07 18:39:19,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402528140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:19,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:19,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:19,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165920880] [2021-11-07 18:39:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:19,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:19,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:19,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:19,700 INFO L87 Difference]: Start difference. First operand 3097 states and 4145 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-07 18:39:21,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:22,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:22,305 INFO L93 Difference]: Finished difference Result 8685 states and 11691 transitions. [2021-11-07 18:39:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:22,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2021-11-07 18:39:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:22,325 INFO L225 Difference]: With dead ends: 8685 [2021-11-07 18:39:22,326 INFO L226 Difference]: Without dead ends: 5744 [2021-11-07 18:39:22,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:22,335 INFO L933 BasicCegarLoop]: 2811 mSDtfsCounter, 2429 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2297.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.38ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2491.38ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:22,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2429 Valid, 5599 Invalid, 39 Unknown, 0 Unchecked, 21.38ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2491.38ms Time] [2021-11-07 18:39:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2021-11-07 18:39:22,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5684. [2021-11-07 18:39:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5658 states have (on average 1.356486390950866) internal successors, (7675), 5683 states have internal predecessors, (7675), 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) [2021-11-07 18:39:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 7675 transitions. [2021-11-07 18:39:22,446 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 7675 transitions. Word has length 99 [2021-11-07 18:39:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:22,448 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 7675 transitions. [2021-11-07 18:39:22,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-07 18:39:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 7675 transitions. [2021-11-07 18:39:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 18:39:22,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:22,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:39:22,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:39:22,458 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:22,459 INFO L85 PathProgramCache]: Analyzing trace with hash -88800783, now seen corresponding path program 1 times [2021-11-07 18:39:22,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:22,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972822560] [2021-11-07 18:39:22,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:22,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:22,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:22,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972822560] [2021-11-07 18:39:22,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972822560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:22,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:22,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:22,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110856036] [2021-11-07 18:39:22,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:22,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:22,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:22,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:22,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:22,830 INFO L87 Difference]: Start difference. First operand 5684 states and 7675 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-11-07 18:39:24,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:25,529 INFO L93 Difference]: Finished difference Result 15804 states and 21469 transitions. [2021-11-07 18:39:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:25,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2021-11-07 18:39:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:25,563 INFO L225 Difference]: With dead ends: 15804 [2021-11-07 18:39:25,564 INFO L226 Difference]: Without dead ends: 10276 [2021-11-07 18:39:25,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:25,578 INFO L933 BasicCegarLoop]: 2807 mSDtfsCounter, 2318 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2430.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 5581 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.72ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2552.16ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:25,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2318 Valid, 5581 Invalid, 61 Unknown, 0 Unchecked, 7.72ms Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2552.16ms Time] [2021-11-07 18:39:25,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2021-11-07 18:39:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 10204. [2021-11-07 18:39:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10204 states, 10178 states have (on average 1.3642169384947926) internal successors, (13885), 10203 states have internal predecessors, (13885), 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) [2021-11-07 18:39:25,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 13885 transitions. [2021-11-07 18:39:25,805 INFO L78 Accepts]: Start accepts. Automaton has 10204 states and 13885 transitions. Word has length 108 [2021-11-07 18:39:25,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:25,806 INFO L470 AbstractCegarLoop]: Abstraction has 10204 states and 13885 transitions. [2021-11-07 18:39:25,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-11-07 18:39:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 10204 states and 13885 transitions. [2021-11-07 18:39:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 18:39:25,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:25,814 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-11-07 18:39:25,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:39:25,815 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:25,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1652114132, now seen corresponding path program 1 times [2021-11-07 18:39:25,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:25,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924055249] [2021-11-07 18:39:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:25,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:26,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:26,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924055249] [2021-11-07 18:39:26,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924055249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:26,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:26,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:26,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333176115] [2021-11-07 18:39:26,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:26,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:26,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:26,119 INFO L87 Difference]: Start difference. First operand 10204 states and 13885 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-07 18:39:28,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:28,629 INFO L93 Difference]: Finished difference Result 30260 states and 41265 transitions. [2021-11-07 18:39:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:28,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2021-11-07 18:39:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:28,691 INFO L225 Difference]: With dead ends: 30260 [2021-11-07 18:39:28,691 INFO L226 Difference]: Without dead ends: 20212 [2021-11-07 18:39:28,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:28,715 INFO L933 BasicCegarLoop]: 4111 mSDtfsCounter, 2618 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2208.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.21ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2277.50ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:28,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2618 Valid, 6916 Invalid, 19 Unknown, 0 Unchecked, 6.21ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2277.50ms Time] [2021-11-07 18:39:28,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20212 states. [2021-11-07 18:39:29,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20212 to 20128. [2021-11-07 18:39:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20128 states, 20102 states have (on average 1.3666799323450403) internal successors, (27473), 20127 states have internal predecessors, (27473), 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) [2021-11-07 18:39:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 27473 transitions. [2021-11-07 18:39:29,291 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 27473 transitions. Word has length 110 [2021-11-07 18:39:29,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:29,292 INFO L470 AbstractCegarLoop]: Abstraction has 20128 states and 27473 transitions. [2021-11-07 18:39:29,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-07 18:39:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 27473 transitions. [2021-11-07 18:39:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 18:39:29,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:29,297 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] [2021-11-07 18:39:29,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:39:29,298 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1415452834, now seen corresponding path program 1 times [2021-11-07 18:39:29,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:29,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463447388] [2021-11-07 18:39:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:29,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:29,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:29,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463447388] [2021-11-07 18:39:29,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463447388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:29,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:29,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:29,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152231974] [2021-11-07 18:39:29,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:29,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:29,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:29,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:29,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:29,591 INFO L87 Difference]: Start difference. First operand 20128 states and 27473 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-07 18:39:31,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:32,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:32,190 INFO L93 Difference]: Finished difference Result 40677 states and 55546 transitions. [2021-11-07 18:39:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:32,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2021-11-07 18:39:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:32,234 INFO L225 Difference]: With dead ends: 40677 [2021-11-07 18:39:32,234 INFO L226 Difference]: Without dead ends: 20705 [2021-11-07 18:39:32,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:32,267 INFO L933 BasicCegarLoop]: 2809 mSDtfsCounter, 785 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2303.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 5578 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.56ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2369.31ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:32,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 5578 Invalid, 38 Unknown, 0 Unchecked, 4.56ms Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2369.31ms Time] [2021-11-07 18:39:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2021-11-07 18:39:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20693. [2021-11-07 18:39:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20693 states, 20667 states have (on average 1.366236028451154) internal successors, (28236), 20692 states have internal predecessors, (28236), 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) [2021-11-07 18:39:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20693 states to 20693 states and 28236 transitions. [2021-11-07 18:39:32,614 INFO L78 Accepts]: Start accepts. Automaton has 20693 states and 28236 transitions. Word has length 113 [2021-11-07 18:39:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:32,614 INFO L470 AbstractCegarLoop]: Abstraction has 20693 states and 28236 transitions. [2021-11-07 18:39:32,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-07 18:39:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 20693 states and 28236 transitions. [2021-11-07 18:39:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 18:39:32,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:32,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:39:32,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 18:39:32,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1522816006, now seen corresponding path program 1 times [2021-11-07 18:39:32,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:32,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555366166] [2021-11-07 18:39:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:32,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:32,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:32,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555366166] [2021-11-07 18:39:32,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555366166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:32,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:32,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:32,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861765939] [2021-11-07 18:39:32,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:32,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:32,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:32,935 INFO L87 Difference]: Start difference. First operand 20693 states and 28236 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-07 18:39:35,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:35,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:35,819 INFO L93 Difference]: Finished difference Result 55687 states and 76231 transitions. [2021-11-07 18:39:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:35,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2021-11-07 18:39:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:35,913 INFO L225 Difference]: With dead ends: 55687 [2021-11-07 18:39:35,913 INFO L226 Difference]: Without dead ends: 35150 [2021-11-07 18:39:35,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:35,958 INFO L933 BasicCegarLoop]: 3115 mSDtfsCounter, 2181 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2408.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.41ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2486.36ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:35,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 5890 Invalid, 61 Unknown, 0 Unchecked, 5.41ms Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2486.36ms Time] [2021-11-07 18:39:36,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35150 states. [2021-11-07 18:39:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35150 to 35042. [2021-11-07 18:39:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35042 states, 35016 states have (on average 1.3688313913639478) internal successors, (47931), 35041 states have internal predecessors, (47931), 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) [2021-11-07 18:39:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35042 states to 35042 states and 47931 transitions. [2021-11-07 18:39:36,945 INFO L78 Accepts]: Start accepts. Automaton has 35042 states and 47931 transitions. Word has length 115 [2021-11-07 18:39:36,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:36,945 INFO L470 AbstractCegarLoop]: Abstraction has 35042 states and 47931 transitions. [2021-11-07 18:39:36,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-07 18:39:36,945 INFO L276 IsEmpty]: Start isEmpty. Operand 35042 states and 47931 transitions. [2021-11-07 18:39:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-07 18:39:36,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:36,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:39:36,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 18:39:36,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:36,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash -355735077, now seen corresponding path program 1 times [2021-11-07 18:39:36,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:36,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214052822] [2021-11-07 18:39:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:36,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:37,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:37,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214052822] [2021-11-07 18:39:37,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214052822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:37,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:37,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:37,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990837034] [2021-11-07 18:39:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:37,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:37,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:37,293 INFO L87 Difference]: Start difference. First operand 35042 states and 47931 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-07 18:39:39,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:40,466 INFO L93 Difference]: Finished difference Result 99190 states and 135629 transitions. [2021-11-07 18:39:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2021-11-07 18:39:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:40,616 INFO L225 Difference]: With dead ends: 99190 [2021-11-07 18:39:40,616 INFO L226 Difference]: Without dead ends: 64304 [2021-11-07 18:39:40,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:40,680 INFO L933 BasicCegarLoop]: 3010 mSDtfsCounter, 2395 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2341.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 5799 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2401.20ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:40,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2395 Valid, 5799 Invalid, 39 Unknown, 0 Unchecked, 5.01ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2401.20ms Time] [2021-11-07 18:39:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64304 states. [2021-11-07 18:39:41,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64304 to 64128. [2021-11-07 18:39:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64128 states, 64102 states have (on average 1.3658856197934541) internal successors, (87556), 64127 states have internal predecessors, (87556), 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) [2021-11-07 18:39:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64128 states to 64128 states and 87556 transitions. [2021-11-07 18:39:42,061 INFO L78 Accepts]: Start accepts. Automaton has 64128 states and 87556 transitions. Word has length 118 [2021-11-07 18:39:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:42,061 INFO L470 AbstractCegarLoop]: Abstraction has 64128 states and 87556 transitions. [2021-11-07 18:39:42,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-07 18:39:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 64128 states and 87556 transitions. [2021-11-07 18:39:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-07 18:39:42,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:42,072 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2021-11-07 18:39:42,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 18:39:42,072 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1202251336, now seen corresponding path program 1 times [2021-11-07 18:39:42,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:42,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182430015] [2021-11-07 18:39:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:42,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 18:39:42,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:42,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182430015] [2021-11-07 18:39:42,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182430015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:42,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:42,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:42,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813836629] [2021-11-07 18:39:42,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:42,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:42,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:42,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:42,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:42,566 INFO L87 Difference]: Start difference. First operand 64128 states and 87556 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2021-11-07 18:39:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:44,174 INFO L93 Difference]: Finished difference Result 145192 states and 197976 transitions. [2021-11-07 18:39:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 145 [2021-11-07 18:39:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:44,456 INFO L225 Difference]: With dead ends: 145192 [2021-11-07 18:39:44,456 INFO L226 Difference]: Without dead ends: 81300 [2021-11-07 18:39:44,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:44,538 INFO L933 BasicCegarLoop]: 2793 mSDtfsCounter, 2701 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 328.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 4207 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.78ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 354.34ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:44,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2701 Valid, 4207 Invalid, 52 Unknown, 0 Unchecked, 4.78ms Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 354.34ms Time] [2021-11-07 18:39:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81300 states. [2021-11-07 18:39:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81300 to 81184. [2021-11-07 18:39:46,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81184 states, 81158 states have (on average 1.362133123043939) internal successors, (110548), 81183 states have internal predecessors, (110548), 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) [2021-11-07 18:39:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81184 states to 81184 states and 110548 transitions. [2021-11-07 18:39:46,466 INFO L78 Accepts]: Start accepts. Automaton has 81184 states and 110548 transitions. Word has length 145 [2021-11-07 18:39:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:46,466 INFO L470 AbstractCegarLoop]: Abstraction has 81184 states and 110548 transitions. [2021-11-07 18:39:46,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2021-11-07 18:39:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand 81184 states and 110548 transitions. [2021-11-07 18:39:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-07 18:39:46,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:46,477 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2021-11-07 18:39:46,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 18:39:46,478 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1522539017, now seen corresponding path program 1 times [2021-11-07 18:39:46,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:46,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089788005] [2021-11-07 18:39:46,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:46,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:46,745 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:46,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:46,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089788005] [2021-11-07 18:39:46,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089788005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:46,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:46,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:46,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090038365] [2021-11-07 18:39:46,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:46,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:46,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:46,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:46,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:46,747 INFO L87 Difference]: Start difference. First operand 81184 states and 110548 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-07 18:39:48,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:39:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:39:51,671 INFO L93 Difference]: Finished difference Result 239864 states and 327512 transitions. [2021-11-07 18:39:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:39:51,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2021-11-07 18:39:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:39:52,033 INFO L225 Difference]: With dead ends: 239864 [2021-11-07 18:39:52,033 INFO L226 Difference]: Without dead ends: 158916 [2021-11-07 18:39:52,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:52,155 INFO L933 BasicCegarLoop]: 4084 mSDtfsCounter, 2579 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2326.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.49ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2405.73ms IncrementalHoareTripleChecker+Time [2021-11-07 18:39:52,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2579 Valid, 6873 Invalid, 35 Unknown, 0 Unchecked, 6.49ms Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 2405.73ms Time] [2021-11-07 18:39:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158916 states. [2021-11-07 18:39:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158916 to 158864. [2021-11-07 18:39:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158864 states, 158838 states have (on average 1.3644342034022086) internal successors, (216724), 158863 states have internal predecessors, (216724), 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) [2021-11-07 18:39:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158864 states to 158864 states and 216724 transitions. [2021-11-07 18:39:56,035 INFO L78 Accepts]: Start accepts. Automaton has 158864 states and 216724 transitions. Word has length 145 [2021-11-07 18:39:56,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:39:56,036 INFO L470 AbstractCegarLoop]: Abstraction has 158864 states and 216724 transitions. [2021-11-07 18:39:56,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-07 18:39:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 158864 states and 216724 transitions. [2021-11-07 18:39:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-07 18:39:56,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:39:56,046 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2021-11-07 18:39:56,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 18:39:56,047 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:39:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:39:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1966439691, now seen corresponding path program 1 times [2021-11-07 18:39:56,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:39:56,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983295236] [2021-11-07 18:39:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:39:56,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:39:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:39:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:39:56,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:39:56,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983295236] [2021-11-07 18:39:56,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983295236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:39:56,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:39:56,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:39:56,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003681227] [2021-11-07 18:39:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:39:56,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:39:56,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:39:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:39:56,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:39:56,313 INFO L87 Difference]: Start difference. First operand 158864 states and 216724 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-07 18:39:58,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:40:02,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:40:02,876 INFO L93 Difference]: Finished difference Result 395320 states and 539960 transitions. [2021-11-07 18:40:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:40:02,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2021-11-07 18:40:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:40:03,373 INFO L225 Difference]: With dead ends: 395320 [2021-11-07 18:40:03,373 INFO L226 Difference]: Without dead ends: 235629 [2021-11-07 18:40:03,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:40:03,526 INFO L933 BasicCegarLoop]: 5394 mSDtfsCounter, 2575 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2303.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.25ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2389.38ms IncrementalHoareTripleChecker+Time [2021-11-07 18:40:03,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 8187 Invalid, 36 Unknown, 0 Unchecked, 7.25ms Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2389.38ms Time] [2021-11-07 18:40:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235629 states. [2021-11-07 18:40:08,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235629 to 235577. [2021-11-07 18:40:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235577 states, 235551 states have (on average 1.3660948159846487) internal successors, (321785), 235576 states have internal predecessors, (321785), 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) [2021-11-07 18:40:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235577 states to 235577 states and 321785 transitions. [2021-11-07 18:40:08,923 INFO L78 Accepts]: Start accepts. Automaton has 235577 states and 321785 transitions. Word has length 145 [2021-11-07 18:40:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:40:08,924 INFO L470 AbstractCegarLoop]: Abstraction has 235577 states and 321785 transitions. [2021-11-07 18:40:08,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-07 18:40:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 235577 states and 321785 transitions. [2021-11-07 18:40:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-07 18:40:08,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:40:08,930 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2021-11-07 18:40:08,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 18:40:08,930 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-07 18:40:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:40:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1079319639, now seen corresponding path program 1 times [2021-11-07 18:40:08,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:40:08,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688442797] [2021-11-07 18:40:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:40:08,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:40:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:40:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 18:40:09,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:40:09,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688442797] [2021-11-07 18:40:09,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688442797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:40:09,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:40:09,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:40:09,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188037978] [2021-11-07 18:40:09,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:40:09,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:40:09,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:40:09,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:40:09,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:40:09,187 INFO L87 Difference]: Start difference. First operand 235577 states and 321785 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-07 18:40:11,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []