./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:16:11,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:16:11,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:16:11,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:16:11,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:16:11,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:16:11,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:16:11,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:16:11,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:16:11,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:16:11,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:16:11,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:16:11,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:16:11,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:16:11,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:16:11,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:16:11,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:16:11,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:16:11,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:16:11,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:16:11,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:16:11,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:16:11,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:16:11,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:16:11,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:16:11,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:16:11,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:16:11,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:16:11,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:16:11,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:16:11,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:16:11,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:16:11,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:16:11,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:16:11,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:16:11,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:16:11,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:16:11,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:16:11,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:16:11,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:16:11,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:16:11,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:16:11,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:16:11,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:16:11,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:16:11,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:16:11,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:16:11,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:16:11,821 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:16:11,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:16:11,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:16:11,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:16:11,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:16:11,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:16:11,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:16:11,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:16:11,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:16:11,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:16:11,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:16:11,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:16:11,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:16:11,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:16:11,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:16:11,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:16:11,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:16:11,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:16:11,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:16:11,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:16:11,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:16:11,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:16:11,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:16:11,825 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 [2021-11-05 19:16:12,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:16:12,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:16:12,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:16:12,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:16:12,115 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:16:12,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-05 19:16:12,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c313654fc/0139d64ad35d41e9a6a760973dec2e37/FLAG5689c9906 [2021-11-05 19:16:12,817 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:16:12,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-05 19:16:12,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c313654fc/0139d64ad35d41e9a6a760973dec2e37/FLAG5689c9906 [2021-11-05 19:16:12,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c313654fc/0139d64ad35d41e9a6a760973dec2e37 [2021-11-05 19:16:12,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:16:12,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:16:12,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:16:12,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:16:12,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:16:12,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:16:12" (1/1) ... [2021-11-05 19:16:12,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30329554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:12, skipping insertion in model container [2021-11-05 19:16:12,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:16:12" (1/1) ... [2021-11-05 19:16:12,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:16:13,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:16:14,134 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-05 19:16:14,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:16:14,190 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:16:14,416 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-05 19:16:14,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:16:14,500 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:16:14,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14 WrapperNode [2021-11-05 19:16:14,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:16:14,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:16:14,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:16:14,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:16:14,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:14,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:14,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:16:14,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:16:14,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:16:14,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:16:14,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:14,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:16:15,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:16:15,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:16:15,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:16:15,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (1/1) ... [2021-11-05 19:16:15,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:16:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:16:15,426 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) [2021-11-05 19:16:15,431 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 [2021-11-05 19:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:16:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:16:23,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:16:23,138 INFO L299 CfgBuilder]: Removed 3230 assume(true) statements. [2021-11-05 19:16:23,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:16:23 BoogieIcfgContainer [2021-11-05 19:16:23,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:16:23,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:16:23,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:16:23,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:16:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:16:12" (1/3) ... [2021-11-05 19:16:23,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6a4f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:16:23, skipping insertion in model container [2021-11-05 19:16:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:16:14" (2/3) ... [2021-11-05 19:16:23,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6a4f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:16:23, skipping insertion in model container [2021-11-05 19:16:23,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:16:23" (3/3) ... [2021-11-05 19:16:23,148 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-05 19:16:23,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:16:23,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 19:16:23,192 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:16:23,196 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 [2021-11-05 19:16:23,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 19:16:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 2512 states, 2491 states have (on average 1.3147330389401846) internal successors, (3275), 2511 states have internal predecessors, (3275), 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) [2021-11-05 19:16:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-05 19:16:23,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:23,240 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] [2021-11-05 19:16:23,241 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash -241596489, now seen corresponding path program 1 times [2021-11-05 19:16:23,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:23,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969674150] [2021-11-05 19:16:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:23,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:23,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:23,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969674150] [2021-11-05 19:16:23,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969674150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:23,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:23,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:16:23,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697101298] [2021-11-05 19:16:23,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:23,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:16:23,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:23,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:16:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:16:23,749 INFO L87 Difference]: Start difference. First operand has 2512 states, 2491 states have (on average 1.3147330389401846) internal successors, (3275), 2511 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-05 19:16:23,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:23,849 INFO L93 Difference]: Finished difference Result 5020 states and 6545 transitions. [2021-11-05 19:16:23,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:16:23,851 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-11-05 19:16:23,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:23,872 INFO L225 Difference]: With dead ends: 5020 [2021-11-05 19:16:23,872 INFO L226 Difference]: Without dead ends: 2468 [2021-11-05 19:16:23,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:16:23,886 INFO L933 BasicCegarLoop]: 3221 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:23,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 12.48ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:16:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-05 19:16:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2468. [2021-11-05 19:16:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2448 states have (on average 1.2818627450980393) internal successors, (3138), 2467 states have internal predecessors, (3138), 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) [2021-11-05 19:16:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3138 transitions. [2021-11-05 19:16:23,985 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3138 transitions. Word has length 38 [2021-11-05 19:16:23,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:23,985 INFO L470 AbstractCegarLoop]: Abstraction has 2468 states and 3138 transitions. [2021-11-05 19:16:23,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-05 19:16:23,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3138 transitions. [2021-11-05 19:16:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-05 19:16:23,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:23,988 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] [2021-11-05 19:16:23,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:16:23,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:23,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash -266212417, now seen corresponding path program 1 times [2021-11-05 19:16:23,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:23,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284896466] [2021-11-05 19:16:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:23,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:24,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:24,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284896466] [2021-11-05 19:16:24,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284896466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:24,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:24,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:24,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833286390] [2021-11-05 19:16:24,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:24,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:16:24,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:24,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:16:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:16:24,170 INFO L87 Difference]: Start difference. First operand 2468 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-05 19:16:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:24,367 INFO L93 Difference]: Finished difference Result 6310 states and 8071 transitions. [2021-11-05 19:16:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:16:24,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-11-05 19:16:24,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:24,378 INFO L225 Difference]: With dead ends: 6310 [2021-11-05 19:16:24,378 INFO L226 Difference]: Without dead ends: 3867 [2021-11-05 19:16:24,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:16:24,385 INFO L933 BasicCegarLoop]: 3137 mSDtfsCounter, 1861 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.06ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.87ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:24,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 6183 Invalid, 49 Unknown, 0 Unchecked, 9.06ms Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 110.87ms Time] [2021-11-05 19:16:24,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2021-11-05 19:16:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3703. [2021-11-05 19:16:24,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3703 states, 3683 states have (on average 1.2956828672278033) internal successors, (4772), 3702 states have internal predecessors, (4772), 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) [2021-11-05 19:16:24,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 4772 transitions. [2021-11-05 19:16:24,444 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 4772 transitions. Word has length 38 [2021-11-05 19:16:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:24,444 INFO L470 AbstractCegarLoop]: Abstraction has 3703 states and 4772 transitions. [2021-11-05 19:16:24,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-05 19:16:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 4772 transitions. [2021-11-05 19:16:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 19:16:24,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:24,449 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] [2021-11-05 19:16:24,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:16:24,450 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1589790222, now seen corresponding path program 1 times [2021-11-05 19:16:24,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:24,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954739278] [2021-11-05 19:16:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:24,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:24,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:24,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954739278] [2021-11-05 19:16:24,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954739278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:24,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:24,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:24,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302360809] [2021-11-05 19:16:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:24,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:16:24,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:16:24,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:16:24,611 INFO L87 Difference]: Start difference. First operand 3703 states and 4772 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-05 19:16:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:24,906 INFO L93 Difference]: Finished difference Result 14969 states and 18952 transitions. [2021-11-05 19:16:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:16:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-05 19:16:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:24,938 INFO L225 Difference]: With dead ends: 14969 [2021-11-05 19:16:24,939 INFO L226 Difference]: Without dead ends: 11291 [2021-11-05 19:16:24,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:24,949 INFO L933 BasicCegarLoop]: 7177 mSDtfsCounter, 4885 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 13807 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.40ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.51ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:24,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4885 Valid, 13807 Invalid, 68 Unknown, 0 Unchecked, 18.40ms Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 59.51ms Time] [2021-11-05 19:16:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2021-11-05 19:16:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 5812. [2021-11-05 19:16:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5792 states have (on average 1.2698549723756907) internal successors, (7355), 5811 states have internal predecessors, (7355), 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) [2021-11-05 19:16:25,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 7355 transitions. [2021-11-05 19:16:25,263 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 7355 transitions. Word has length 49 [2021-11-05 19:16:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:25,263 INFO L470 AbstractCegarLoop]: Abstraction has 5812 states and 7355 transitions. [2021-11-05 19:16:25,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-05 19:16:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 7355 transitions. [2021-11-05 19:16:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 19:16:25,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:25,265 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] [2021-11-05 19:16:25,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:16:25,266 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -166561557, now seen corresponding path program 1 times [2021-11-05 19:16:25,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:25,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955270183] [2021-11-05 19:16:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:25,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:25,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:25,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955270183] [2021-11-05 19:16:25,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955270183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:25,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:25,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:25,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507601258] [2021-11-05 19:16:25,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:25,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:16:25,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:25,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:16:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:16:25,429 INFO L87 Difference]: Start difference. First operand 5812 states and 7355 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-05 19:16:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:26,006 INFO L93 Difference]: Finished difference Result 25512 states and 31867 transitions. [2021-11-05 19:16:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:16:26,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-05 19:16:26,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:26,070 INFO L225 Difference]: With dead ends: 25512 [2021-11-05 19:16:26,071 INFO L226 Difference]: Without dead ends: 19725 [2021-11-05 19:16:26,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:26,089 INFO L933 BasicCegarLoop]: 5154 mSDtfsCounter, 6915 mSDsluCounter, 6210 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6915 SdHoareTripleChecker+Valid, 11364 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.28ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.03ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:26,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6915 Valid, 11364 Invalid, 60 Unknown, 0 Unchecked, 24.28ms Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 67.03ms Time] [2021-11-05 19:16:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19725 states. [2021-11-05 19:16:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19725 to 11181. [2021-11-05 19:16:26,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11181 states, 11161 states have (on average 1.2658363945882984) internal successors, (14128), 11180 states have internal predecessors, (14128), 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) [2021-11-05 19:16:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11181 states to 11181 states and 14128 transitions. [2021-11-05 19:16:26,598 INFO L78 Accepts]: Start accepts. Automaton has 11181 states and 14128 transitions. Word has length 50 [2021-11-05 19:16:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:26,600 INFO L470 AbstractCegarLoop]: Abstraction has 11181 states and 14128 transitions. [2021-11-05 19:16:26,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-05 19:16:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 11181 states and 14128 transitions. [2021-11-05 19:16:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 19:16:26,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:26,602 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] [2021-11-05 19:16:26,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:16:26,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:26,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1221108834, now seen corresponding path program 1 times [2021-11-05 19:16:26,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:26,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503741278] [2021-11-05 19:16:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:26,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:26,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:26,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503741278] [2021-11-05 19:16:26,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503741278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:26,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:26,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:26,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958669019] [2021-11-05 19:16:26,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:26,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:16:26,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:26,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:16:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:16:26,732 INFO L87 Difference]: Start difference. First operand 11181 states and 14128 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-05 19:16:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:27,636 INFO L93 Difference]: Finished difference Result 49695 states and 62010 transitions. [2021-11-05 19:16:27,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:16:27,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-05 19:16:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:27,742 INFO L225 Difference]: With dead ends: 49695 [2021-11-05 19:16:27,743 INFO L226 Difference]: Without dead ends: 38539 [2021-11-05 19:16:27,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:27,777 INFO L933 BasicCegarLoop]: 5153 mSDtfsCounter, 6921 mSDsluCounter, 6210 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6921 SdHoareTripleChecker+Valid, 11363 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.16ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.67ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:27,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6921 Valid, 11363 Invalid, 60 Unknown, 0 Unchecked, 17.16ms Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 66.67ms Time] [2021-11-05 19:16:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38539 states. [2021-11-05 19:16:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38539 to 21544. [2021-11-05 19:16:28,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21544 states, 21524 states have (on average 1.26119680356811) internal successors, (27146), 21543 states have internal predecessors, (27146), 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) [2021-11-05 19:16:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21544 states to 21544 states and 27146 transitions. [2021-11-05 19:16:28,446 INFO L78 Accepts]: Start accepts. Automaton has 21544 states and 27146 transitions. Word has length 51 [2021-11-05 19:16:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:28,446 INFO L470 AbstractCegarLoop]: Abstraction has 21544 states and 27146 transitions. [2021-11-05 19:16:28,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-05 19:16:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 21544 states and 27146 transitions. [2021-11-05 19:16:28,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 19:16:28,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:28,448 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] [2021-11-05 19:16:28,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:16:28,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:28,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1289218687, now seen corresponding path program 1 times [2021-11-05 19:16:28,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:28,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216403750] [2021-11-05 19:16:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:28,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:28,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:28,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216403750] [2021-11-05 19:16:28,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216403750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:28,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:28,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:28,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156270996] [2021-11-05 19:16:28,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:28,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:16:28,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:28,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:16:28,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:16:28,561 INFO L87 Difference]: Start difference. First operand 21544 states and 27146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-05 19:16:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:30,233 INFO L93 Difference]: Finished difference Result 96928 states and 120700 transitions. [2021-11-05 19:16:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:16:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-05 19:16:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:30,397 INFO L225 Difference]: With dead ends: 96928 [2021-11-05 19:16:30,397 INFO L226 Difference]: Without dead ends: 75409 [2021-11-05 19:16:30,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:30,449 INFO L933 BasicCegarLoop]: 5152 mSDtfsCounter, 6927 mSDsluCounter, 6210 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6927 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.10ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.04ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:30,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6927 Valid, 11362 Invalid, 60 Unknown, 0 Unchecked, 22.10ms Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 63.04ms Time] [2021-11-05 19:16:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75409 states. [2021-11-05 19:16:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75409 to 41519. [2021-11-05 19:16:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41519 states, 41499 states have (on average 1.256030265789537) internal successors, (52124), 41518 states have internal predecessors, (52124), 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) [2021-11-05 19:16:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41519 states to 41519 states and 52124 transitions. [2021-11-05 19:16:32,187 INFO L78 Accepts]: Start accepts. Automaton has 41519 states and 52124 transitions. Word has length 52 [2021-11-05 19:16:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:32,189 INFO L470 AbstractCegarLoop]: Abstraction has 41519 states and 52124 transitions. [2021-11-05 19:16:32,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-05 19:16:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 41519 states and 52124 transitions. [2021-11-05 19:16:32,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 19:16:32,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:32,190 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 19:16:32,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:16:32,191 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 868569317, now seen corresponding path program 1 times [2021-11-05 19:16:32,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:32,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301814981] [2021-11-05 19:16:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:32,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 19:16:32,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:32,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301814981] [2021-11-05 19:16:32,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301814981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:32,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:32,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 19:16:32,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451616170] [2021-11-05 19:16:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:32,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:16:32,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:32,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:16:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:32,299 INFO L87 Difference]: Start difference. First operand 41519 states and 52124 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-05 19:16:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:34,804 INFO L93 Difference]: Finished difference Result 138511 states and 172896 transitions. [2021-11-05 19:16:34,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 19:16:34,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 57 [2021-11-05 19:16:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:34,986 INFO L225 Difference]: With dead ends: 138511 [2021-11-05 19:16:34,990 INFO L226 Difference]: Without dead ends: 97017 [2021-11-05 19:16:35,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.58ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 19:16:35,055 INFO L933 BasicCegarLoop]: 5959 mSDtfsCounter, 10952 mSDsluCounter, 12945 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10952 SdHoareTripleChecker+Valid, 18904 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.86ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.24ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:35,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10952 Valid, 18904 Invalid, 143 Unknown, 0 Unchecked, 20.86ms Time], IncrementalHoareTripleChecker [32 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 96.24ms Time] [2021-11-05 19:16:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97017 states. [2021-11-05 19:16:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97017 to 41599. [2021-11-05 19:16:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41599 states, 41579 states have (on average 1.255537651218163) internal successors, (52204), 41598 states have internal predecessors, (52204), 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) [2021-11-05 19:16:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41599 states to 41599 states and 52204 transitions. [2021-11-05 19:16:36,778 INFO L78 Accepts]: Start accepts. Automaton has 41599 states and 52204 transitions. Word has length 57 [2021-11-05 19:16:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:36,778 INFO L470 AbstractCegarLoop]: Abstraction has 41599 states and 52204 transitions. [2021-11-05 19:16:36,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-05 19:16:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 41599 states and 52204 transitions. [2021-11-05 19:16:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-05 19:16:36,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:36,780 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, 1, 1, 1] [2021-11-05 19:16:36,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 19:16:36,780 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -477338840, now seen corresponding path program 1 times [2021-11-05 19:16:36,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:36,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063387651] [2021-11-05 19:16:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:36,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:36,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:36,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063387651] [2021-11-05 19:16:36,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063387651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:36,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:36,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 19:16:36,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779585910] [2021-11-05 19:16:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:36,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:16:36,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:16:36,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:36,924 INFO L87 Difference]: Start difference. First operand 41599 states and 52204 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-05 19:16:38,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:16:42,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:42,745 INFO L93 Difference]: Finished difference Result 167665 states and 214157 transitions. [2021-11-05 19:16:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:16:42,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 121 [2021-11-05 19:16:42,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:43,018 INFO L225 Difference]: With dead ends: 167665 [2021-11-05 19:16:43,018 INFO L226 Difference]: Without dead ends: 126091 [2021-11-05 19:16:43,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 8.21ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:16:43,228 INFO L933 BasicCegarLoop]: 3138 mSDtfsCounter, 13195 mSDsluCounter, 8363 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2041.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13195 SdHoareTripleChecker+Valid, 11501 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.82ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2142.26ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:43,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13195 Valid, 11501 Invalid, 23 Unknown, 0 Unchecked, 18.82ms Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2142.26ms Time] [2021-11-05 19:16:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126091 states. [2021-11-05 19:16:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126091 to 97851. [2021-11-05 19:16:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97851 states, 97831 states have (on average 1.2803099222127956) internal successors, (125254), 97850 states have internal predecessors, (125254), 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) [2021-11-05 19:16:47,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97851 states to 97851 states and 125254 transitions. [2021-11-05 19:16:47,015 INFO L78 Accepts]: Start accepts. Automaton has 97851 states and 125254 transitions. Word has length 121 [2021-11-05 19:16:47,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:16:47,015 INFO L470 AbstractCegarLoop]: Abstraction has 97851 states and 125254 transitions. [2021-11-05 19:16:47,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-05 19:16:47,016 INFO L276 IsEmpty]: Start isEmpty. Operand 97851 states and 125254 transitions. [2021-11-05 19:16:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-05 19:16:47,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:16:47,017 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:16:47,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 19:16:47,018 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 19:16:47,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:16:47,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1306968425, now seen corresponding path program 1 times [2021-11-05 19:16:47,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:16:47,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782166575] [2021-11-05 19:16:47,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:16:47,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:16:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:16:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:16:47,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:16:47,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782166575] [2021-11-05 19:16:47,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782166575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:16:47,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:16:47,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:16:47,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496384189] [2021-11-05 19:16:47,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:16:47,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:16:47,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:16:47,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:16:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:16:47,134 INFO L87 Difference]: Start difference. First operand 97851 states and 125254 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2021-11-05 19:16:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:16:53,218 INFO L93 Difference]: Finished difference Result 282703 states and 362220 transitions. [2021-11-05 19:16:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:16:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 147 [2021-11-05 19:16:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:16:53,575 INFO L225 Difference]: With dead ends: 282703 [2021-11-05 19:16:53,575 INFO L226 Difference]: Without dead ends: 184877 [2021-11-05 19:16:53,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:16:53,699 INFO L933 BasicCegarLoop]: 5950 mSDtfsCounter, 2885 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 9049 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.83ms IncrementalHoareTripleChecker+Time [2021-11-05 19:16:53,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 9049 Invalid, 14 Unknown, 0 Unchecked, 9.03ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 42.83ms Time] [2021-11-05 19:16:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184877 states.