./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--ethernet--amd--pcnet32.ko-entry_point.cil.out.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.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 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:41:05,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:41:05,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:41:05,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:41:05,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:41:05,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:41:05,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:41:05,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:41:05,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:41:05,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:41:05,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:41:05,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:41:05,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:41:05,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:41:05,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:41:05,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:41:05,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:41:05,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:41:05,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:41:05,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:41:05,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:41:05,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:41:05,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:41:05,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:41:05,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:41:05,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:41:05,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:41:05,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:41:05,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:41:05,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:41:05,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:41:05,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:41:05,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:41:05,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:41:05,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:41:05,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:41:05,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:41:05,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:41:05,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:41:05,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:41:05,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:41:05,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:41:05,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:41:05,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:41:05,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:41:05,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:41:06,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:41:06,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:41:06,000 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:41:06,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:41:06,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:41:06,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:41:06,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:41:06,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:41:06,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:41:06,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:41:06,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:41:06,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:41:06,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:41:06,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:41:06,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:41:06,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:41:06,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:41:06,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:41:06,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:41:06,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:41:06,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 [2021-11-07 15:41:06,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:41:06,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:41:06,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:41:06,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:41:06,254 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:41:06,255 INFO L432 ainManager$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--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-07 15:41:06,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/405133bfc/8349bf61f2554f31b1fcb1b11e984f5d/FLAG8c7aa8986 [2021-11-07 15:41:06,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:41:06,934 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--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-07 15:41:06,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/405133bfc/8349bf61f2554f31b1fcb1b11e984f5d/FLAG8c7aa8986 [2021-11-07 15:41:07,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/405133bfc/8349bf61f2554f31b1fcb1b11e984f5d [2021-11-07 15:41:07,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:41:07,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:41:07,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:41:07,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:41:07,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:41:07,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:07" (1/1) ... [2021-11-07 15:41:07,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746e68ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:07, skipping insertion in model container [2021-11-07 15:41:07,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:07" (1/1) ... [2021-11-07 15:41:07,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:41:07,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:41:08,689 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--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-07 15:41:08,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:41:08,769 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:41:09,036 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--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-07 15:41:09,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:41:09,178 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:41:09,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09 WrapperNode [2021-11-07 15:41:09,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:41:09,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:41:09,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:41:09,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:41:09,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:09,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:10,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:41:10,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:41:10,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:41:10,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:41:10,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:10,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:10,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:10,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:11,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:11,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:12,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:12,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:41:12,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:41:12,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:41:12,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:41:12,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (1/1) ... [2021-11-07 15:41:12,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:41:12,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:41:12,714 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 15:41:12,720 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 15:41:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:41:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:41:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 15:41:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:41:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-07 15:41:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:41:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 15:41:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:41:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:41:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:41:46,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:41:46,553 INFO L299 CfgBuilder]: Removed 16101 assume(true) statements. [2021-11-07 15:41:46,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:46 BoogieIcfgContainer [2021-11-07 15:41:46,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:41:46,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:41:46,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:41:46,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:41:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:41:07" (1/3) ... [2021-11-07 15:41:46,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9e40c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:46, skipping insertion in model container [2021-11-07 15:41:46,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:09" (2/3) ... [2021-11-07 15:41:46,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9e40c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:46, skipping insertion in model container [2021-11-07 15:41:46,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:46" (3/3) ... [2021-11-07 15:41:46,564 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-07 15:41:46,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:41:46,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-07 15:41:46,632 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:41:46,638 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 15:41:46,639 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-07 15:41:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 9912 states, 9882 states have (on average 1.321291236591783) internal successors, (13057), 9911 states have internal predecessors, (13057), 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 15:41:46,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 15:41:46,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:46,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:46,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:46,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:46,777 INFO L85 PathProgramCache]: Analyzing trace with hash -299569302, now seen corresponding path program 1 times [2021-11-07 15:41:46,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:46,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757160020] [2021-11-07 15:41:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:46,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:47,299 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 15:41:47,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:47,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757160020] [2021-11-07 15:41:47,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757160020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:47,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:47,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:41:47,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563530234] [2021-11-07 15:41:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:47,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:41:47,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:41:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:41:47,345 INFO L87 Difference]: Start difference. First operand has 9912 states, 9882 states have (on average 1.321291236591783) internal successors, (13057), 9911 states have internal predecessors, (13057), 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 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:41:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:47,544 INFO L93 Difference]: Finished difference Result 19802 states and 26085 transitions. [2021-11-07 15:41:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:41:47,546 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 15:41:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:41:47,591 INFO L225 Difference]: With dead ends: 19802 [2021-11-07 15:41:47,591 INFO L226 Difference]: Without dead ends: 9802 [2021-11-07 15:41:47,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:41:47,618 INFO L933 BasicCegarLoop]: 12955 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, 12955 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:41:47,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12955 Invalid, 0 Unknown, 0 Unchecked, 13.36ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:41:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9802 states. [2021-11-07 15:41:47,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9802 to 9802. [2021-11-07 15:41:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9802 states, 9773 states have (on average 1.309628568505065) internal successors, (12799), 9801 states have internal predecessors, (12799), 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 15:41:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9802 states to 9802 states and 12799 transitions. [2021-11-07 15:41:47,856 INFO L78 Accepts]: Start accepts. Automaton has 9802 states and 12799 transitions. Word has length 191 [2021-11-07 15:41:47,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:41:47,856 INFO L470 AbstractCegarLoop]: Abstraction has 9802 states and 12799 transitions. [2021-11-07 15:41:47,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:41:47,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9802 states and 12799 transitions. [2021-11-07 15:41:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 15:41:47,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:47,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:47,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:41:47,865 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1756658342, now seen corresponding path program 1 times [2021-11-07 15:41:47,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:47,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424296384] [2021-11-07 15:41:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:47,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:48,356 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 15:41:48,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:48,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424296384] [2021-11-07 15:41:48,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424296384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:48,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:48,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:41:48,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185917117] [2021-11-07 15:41:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:48,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:41:48,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:48,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:41:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:48,361 INFO L87 Difference]: Start difference. First operand 9802 states and 12799 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:41:48,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:48,955 INFO L93 Difference]: Finished difference Result 25781 states and 33726 transitions. [2021-11-07 15:41:48,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:41:48,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 15:41:48,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:41:49,001 INFO L225 Difference]: With dead ends: 25781 [2021-11-07 15:41:49,002 INFO L226 Difference]: Without dead ends: 16127 [2021-11-07 15:41:49,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:49,023 INFO L933 BasicCegarLoop]: 12798 mSDtfsCounter, 8592 mSDsluCounter, 12402 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 207.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8592 SdHoareTripleChecker+Valid, 25200 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.64ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 269.44ms IncrementalHoareTripleChecker+Time [2021-11-07 15:41:49,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8592 Valid, 25200 Invalid, 106 Unknown, 0 Unchecked, 32.64ms Time], IncrementalHoareTripleChecker [18 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 269.44ms Time] [2021-11-07 15:41:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16127 states. [2021-11-07 15:41:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16127 to 15267. [2021-11-07 15:41:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15267 states, 15238 states have (on average 1.3123113269457933) internal successors, (19997), 15266 states have internal predecessors, (19997), 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 15:41:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15267 states to 15267 states and 19997 transitions. [2021-11-07 15:41:49,466 INFO L78 Accepts]: Start accepts. Automaton has 15267 states and 19997 transitions. Word has length 191 [2021-11-07 15:41:49,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:41:49,469 INFO L470 AbstractCegarLoop]: Abstraction has 15267 states and 19997 transitions. [2021-11-07 15:41:49,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:41:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15267 states and 19997 transitions. [2021-11-07 15:41:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-07 15:41:49,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:49,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:49,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:41:49,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1578754068, now seen corresponding path program 1 times [2021-11-07 15:41:49,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:49,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245676676] [2021-11-07 15:41:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:49,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:49,720 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 15:41:49,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:49,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245676676] [2021-11-07 15:41:49,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245676676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:49,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:49,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:41:49,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405525437] [2021-11-07 15:41:49,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:49,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:41:49,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:49,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:41:49,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:49,723 INFO L87 Difference]: Start difference. First operand 15267 states and 19997 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 15:41:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:50,196 INFO L93 Difference]: Finished difference Result 42281 states and 55406 transitions. [2021-11-07 15:41:50,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:41:50,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 196 [2021-11-07 15:41:50,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:41:50,255 INFO L225 Difference]: With dead ends: 42281 [2021-11-07 15:41:50,255 INFO L226 Difference]: Without dead ends: 27162 [2021-11-07 15:41:50,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:50,286 INFO L933 BasicCegarLoop]: 12798 mSDtfsCounter, 10671 mSDsluCounter, 12568 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10671 SdHoareTripleChecker+Valid, 25366 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.36ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.42ms IncrementalHoareTripleChecker+Time [2021-11-07 15:41:50,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10671 Valid, 25366 Invalid, 50 Unknown, 0 Unchecked, 25.36ms Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 103.42ms Time] [2021-11-07 15:41:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27162 states. [2021-11-07 15:41:50,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27162 to 27126. [2021-11-07 15:41:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27126 states, 27097 states have (on average 1.3127652507657674) internal successors, (35572), 27125 states have internal predecessors, (35572), 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 15:41:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27126 states to 27126 states and 35572 transitions. [2021-11-07 15:41:50,974 INFO L78 Accepts]: Start accepts. Automaton has 27126 states and 35572 transitions. Word has length 196 [2021-11-07 15:41:50,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:41:50,975 INFO L470 AbstractCegarLoop]: Abstraction has 27126 states and 35572 transitions. [2021-11-07 15:41:50,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 15:41:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 27126 states and 35572 transitions. [2021-11-07 15:41:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-07 15:41:50,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:50,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:50,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:41:50,988 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1766880080, now seen corresponding path program 1 times [2021-11-07 15:41:50,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:50,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710754851] [2021-11-07 15:41:50,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:50,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:51,239 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 15:41:51,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:51,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710754851] [2021-11-07 15:41:51,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710754851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:51,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:51,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:41:51,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977341320] [2021-11-07 15:41:51,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:51,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:41:51,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:41:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:51,241 INFO L87 Difference]: Start difference. First operand 27126 states and 35572 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 15:41:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:51,902 INFO L93 Difference]: Finished difference Result 66358 states and 86977 transitions. [2021-11-07 15:41:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:41:51,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 237 [2021-11-07 15:41:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:41:52,004 INFO L225 Difference]: With dead ends: 66358 [2021-11-07 15:41:52,004 INFO L226 Difference]: Without dead ends: 39380 [2021-11-07 15:41:52,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:52,052 INFO L933 BasicCegarLoop]: 18999 mSDtfsCounter, 7285 mSDsluCounter, 12565 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7285 SdHoareTripleChecker+Valid, 31564 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.72ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.87ms IncrementalHoareTripleChecker+Time [2021-11-07 15:41:52,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7285 Valid, 31564 Invalid, 53 Unknown, 0 Unchecked, 26.72ms Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 107.87ms Time] [2021-11-07 15:41:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39380 states. [2021-11-07 15:41:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39380 to 39320. [2021-11-07 15:41:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39320 states, 39291 states have (on average 1.3114962714107556) internal successors, (51530), 39319 states have internal predecessors, (51530), 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 15:41:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39320 states to 39320 states and 51530 transitions. [2021-11-07 15:41:52,987 INFO L78 Accepts]: Start accepts. Automaton has 39320 states and 51530 transitions. Word has length 237 [2021-11-07 15:41:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:41:52,988 INFO L470 AbstractCegarLoop]: Abstraction has 39320 states and 51530 transitions. [2021-11-07 15:41:52,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 15:41:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 39320 states and 51530 transitions. [2021-11-07 15:41:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-07 15:41:52,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:53,000 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:53,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:41:53,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:53,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1371265079, now seen corresponding path program 1 times [2021-11-07 15:41:53,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:53,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252066012] [2021-11-07 15:41:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:53,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:41:53,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:53,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252066012] [2021-11-07 15:41:53,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252066012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:53,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:53,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:41:53,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022382015] [2021-11-07 15:41:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:53,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:41:53,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:41:53,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:53,288 INFO L87 Difference]: Start difference. First operand 39320 states and 51530 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 15:41:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:54,020 INFO L93 Difference]: Finished difference Result 78492 states and 102877 transitions. [2021-11-07 15:41:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:41:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 240 [2021-11-07 15:41:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:41:54,106 INFO L225 Difference]: With dead ends: 78492 [2021-11-07 15:41:54,106 INFO L226 Difference]: Without dead ends: 39320 [2021-11-07 15:41:54,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:54,169 INFO L933 BasicCegarLoop]: 12797 mSDtfsCounter, 12636 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12636 SdHoareTripleChecker+Valid, 12797 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.21ms IncrementalHoareTripleChecker+Time [2021-11-07 15:41:54,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12636 Valid, 12797 Invalid, 1 Unknown, 0 Unchecked, 16.10ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.21ms Time] [2021-11-07 15:41:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39320 states. [2021-11-07 15:41:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39320 to 39320. [2021-11-07 15:41:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39320 states, 39291 states have (on average 1.311394466926268) internal successors, (51526), 39319 states have internal predecessors, (51526), 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 15:41:55,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39320 states to 39320 states and 51526 transitions. [2021-11-07 15:41:55,192 INFO L78 Accepts]: Start accepts. Automaton has 39320 states and 51526 transitions. Word has length 240 [2021-11-07 15:41:55,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:41:55,192 INFO L470 AbstractCegarLoop]: Abstraction has 39320 states and 51526 transitions. [2021-11-07 15:41:55,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 15:41:55,192 INFO L276 IsEmpty]: Start isEmpty. Operand 39320 states and 51526 transitions. [2021-11-07 15:41:55,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-07 15:41:55,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:41:55,202 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:55,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:41:55,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:41:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:41:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2084668555, now seen corresponding path program 1 times [2021-11-07 15:41:55,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:41:55,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931076907] [2021-11-07 15:41:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:41:55,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:41:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:41:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:41:55,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:41:55,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931076907] [2021-11-07 15:41:55,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931076907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:41:55,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:41:55,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:41:55,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807552477] [2021-11-07 15:41:55,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:41:55,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:41:55,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:41:55,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:41:55,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:41:55,507 INFO L87 Difference]: Start difference. First operand 39320 states and 51526 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 15:41:58,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:41:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:41:59,893 INFO L93 Difference]: Finished difference Result 92689 states and 121540 transitions. [2021-11-07 15:41:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:41:59,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 240 [2021-11-07 15:41:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:42:00,015 INFO L225 Difference]: With dead ends: 92689 [2021-11-07 15:42:00,015 INFO L226 Difference]: Without dead ends: 53517 [2021-11-07 15:42:00,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:42:00,095 INFO L933 BasicCegarLoop]: 12779 mSDtfsCounter, 8462 mSDsluCounter, 12595 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3411.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8462 SdHoareTripleChecker+Valid, 25374 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3501.09ms IncrementalHoareTripleChecker+Time [2021-11-07 15:42:00,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8462 Valid, 25374 Invalid, 39 Unknown, 0 Unchecked, 17.42ms Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 3501.09ms Time] [2021-11-07 15:42:00,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53517 states. [2021-11-07 15:42:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53517 to 53461. [2021-11-07 15:42:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53461 states, 53432 states have (on average 1.3129398113490043) internal successors, (70153), 53460 states have internal predecessors, (70153), 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 15:42:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53461 states to 53461 states and 70153 transitions. [2021-11-07 15:42:01,580 INFO L78 Accepts]: Start accepts. Automaton has 53461 states and 70153 transitions. Word has length 240 [2021-11-07 15:42:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:42:01,581 INFO L470 AbstractCegarLoop]: Abstraction has 53461 states and 70153 transitions. [2021-11-07 15:42:01,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 15:42:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 53461 states and 70153 transitions. [2021-11-07 15:42:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-07 15:42:01,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:42:01,592 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:01,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:42:01,592 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:42:01,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:42:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash 994145015, now seen corresponding path program 1 times [2021-11-07 15:42:01,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:42:01,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849795181] [2021-11-07 15:42:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:42:01,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:42:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:42:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 15:42:01,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:42:01,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849795181] [2021-11-07 15:42:01,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849795181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:42:01,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:42:01,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:42:01,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190100107] [2021-11-07 15:42:01,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:42:01,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:42:01,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:42:01,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:42:01,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:42:01,802 INFO L87 Difference]: Start difference. First operand 53461 states and 70153 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 15:42:03,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:42:03,576 INFO L93 Difference]: Finished difference Result 159691 states and 209499 transitions. [2021-11-07 15:42:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:42:03,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 240 [2021-11-07 15:42:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:42:03,938 INFO L225 Difference]: With dead ends: 159691 [2021-11-07 15:42:03,939 INFO L226 Difference]: Without dead ends: 106378 [2021-11-07 15:42:04,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:42:04,048 INFO L933 BasicCegarLoop]: 24769 mSDtfsCounter, 12510 mSDsluCounter, 12787 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12510 SdHoareTripleChecker+Valid, 37556 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.66ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.49ms IncrementalHoareTripleChecker+Time [2021-11-07 15:42:04,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12510 Valid, 37556 Invalid, 19 Unknown, 0 Unchecked, 54.66ms Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 35.49ms Time] [2021-11-07 15:42:04,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106378 states. [2021-11-07 15:42:05,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106378 to 53473. [2021-11-07 15:42:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53473 states, 53444 states have (on average 1.3128695456926878) internal successors, (70165), 53472 states have internal predecessors, (70165), 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 15:42:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53473 states to 53473 states and 70165 transitions. [2021-11-07 15:42:05,807 INFO L78 Accepts]: Start accepts. Automaton has 53473 states and 70165 transitions. Word has length 240 [2021-11-07 15:42:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:42:05,808 INFO L470 AbstractCegarLoop]: Abstraction has 53473 states and 70165 transitions. [2021-11-07 15:42:05,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 15:42:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 53473 states and 70165 transitions. [2021-11-07 15:42:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-07 15:42:05,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:42:05,975 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:05,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 15:42:05,975 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:42:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:42:05,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1366210311, now seen corresponding path program 1 times [2021-11-07 15:42:05,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:42:05,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085448436] [2021-11-07 15:42:05,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:42:05,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:42:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:42:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 15:42:06,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:42:06,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085448436] [2021-11-07 15:42:06,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085448436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:42:06,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:42:06,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:42:06,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661493097] [2021-11-07 15:42:06,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:42:06,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:42:06,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:42:06,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:42:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:42:06,582 INFO L87 Difference]: Start difference. First operand 53473 states and 70165 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 15:42:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:42:07,925 INFO L93 Difference]: Finished difference Result 106916 states and 140313 transitions. [2021-11-07 15:42:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:42:07,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 241 [2021-11-07 15:42:07,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:42:08,018 INFO L225 Difference]: With dead ends: 106916 [2021-11-07 15:42:08,018 INFO L226 Difference]: Without dead ends: 53487 [2021-11-07 15:42:08,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:42:08,077 INFO L933 BasicCegarLoop]: 12784 mSDtfsCounter, 0 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25471 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.83ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 203.33ms IncrementalHoareTripleChecker+Time [2021-11-07 15:42:08,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25471 Invalid, 137 Unknown, 0 Unchecked, 14.83ms Time], IncrementalHoareTripleChecker [26 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 203.33ms Time] [2021-11-07 15:42:08,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53487 states. [2021-11-07 15:42:09,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53487 to 53487. [2021-11-07 15:42:09,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53487 states, 53458 states have (on average 1.3127876089640464) internal successors, (70179), 53486 states have internal predecessors, (70179), 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 15:42:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53487 states to 53487 states and 70179 transitions. [2021-11-07 15:42:09,622 INFO L78 Accepts]: Start accepts. Automaton has 53487 states and 70179 transitions. Word has length 241 [2021-11-07 15:42:09,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:42:09,622 INFO L470 AbstractCegarLoop]: Abstraction has 53487 states and 70179 transitions. [2021-11-07 15:42:09,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 15:42:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 53487 states and 70179 transitions. [2021-11-07 15:42:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-07 15:42:09,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:42:09,656 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:09,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 15:42:09,657 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:42:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:42:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash 522644981, now seen corresponding path program 1 times [2021-11-07 15:42:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:42:09,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076929063] [2021-11-07 15:42:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:42:09,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:42:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:42:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 15:42:10,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:42:10,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076929063] [2021-11-07 15:42:10,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076929063] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 15:42:10,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317923751] [2021-11-07 15:42:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:42:10,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:42:10,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:42:10,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 15:42:10,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 15:47:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:47:39,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 4852 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 15:47:39,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 15:47:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 15:47:39,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 15:47:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 15:47:39,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317923751] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 15:47:39,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-07 15:47:39,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2021-11-07 15:47:39,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43311364] [2021-11-07 15:47:39,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:47:39,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:47:39,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:47:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:47:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:47:39,949 INFO L87 Difference]: Start difference. First operand 53487 states and 70179 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 15:47:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:47:41,413 INFO L93 Difference]: Finished difference Result 106955 states and 140366 transitions. [2021-11-07 15:47:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:47:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 255 [2021-11-07 15:47:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:47:41,500 INFO L225 Difference]: With dead ends: 106955 [2021-11-07 15:47:41,501 INFO L226 Difference]: Without dead ends: 53516 [2021-11-07 15:47:41,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 43.27ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:47:41,548 INFO L933 BasicCegarLoop]: 12761 mSDtfsCounter, 0 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25448 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.18ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211.51ms IncrementalHoareTripleChecker+Time [2021-11-07 15:47:41,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25448 Invalid, 169 Unknown, 0 Unchecked, 13.18ms Time], IncrementalHoareTripleChecker [58 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 211.51ms Time] [2021-11-07 15:47:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53516 states. [2021-11-07 15:47:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53516 to 53516. [2021-11-07 15:47:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53516 states, 53487 states have (on average 1.3126180193318002) internal successors, (70208), 53515 states have internal predecessors, (70208), 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 15:47:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53516 states to 53516 states and 70208 transitions. [2021-11-07 15:47:42,870 INFO L78 Accepts]: Start accepts. Automaton has 53516 states and 70208 transitions. Word has length 255 [2021-11-07 15:47:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:47:42,870 INFO L470 AbstractCegarLoop]: Abstraction has 53516 states and 70208 transitions. [2021-11-07 15:47:42,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 15:47:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 53516 states and 70208 transitions. [2021-11-07 15:47:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-07 15:47:42,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:47:42,879 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:42,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 15:47:43,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:47:43,096 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:47:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:47:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash 171901791, now seen corresponding path program 1 times [2021-11-07 15:47:43,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:47:43,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604569916] [2021-11-07 15:47:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:47:43,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:47:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:47:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 15:47:43,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:47:43,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604569916] [2021-11-07 15:47:43,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604569916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 15:47:43,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573369936] [2021-11-07 15:47:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:47:43,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:47:43,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:47:43,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 15:47:43,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 15:52:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:52:08,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 4978 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 15:52:08,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 15:52:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-07 15:52:08,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 15:52:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 15:52:09,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573369936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 15:52:09,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 15:52:09,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2021-11-07 15:52:09,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016355107] [2021-11-07 15:52:09,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 15:52:09,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 15:52:09,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:52:09,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 15:52:09,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:52:09,227 INFO L87 Difference]: Start difference. First operand 53516 states and 70208 transitions. Second operand has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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 15:52:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:52:11,832 INFO L93 Difference]: Finished difference Result 107088 states and 140572 transitions. [2021-11-07 15:52:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 15:52:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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 276 [2021-11-07 15:52:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:52:11,927 INFO L225 Difference]: With dead ends: 107088 [2021-11-07 15:52:11,928 INFO L226 Difference]: Without dead ends: 53617 [2021-11-07 15:52:11,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 132.25ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-11-07 15:52:11,988 INFO L933 BasicCegarLoop]: 12761 mSDtfsCounter, 12645 mSDsluCounter, 63477 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 888.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12645 SdHoareTripleChecker+Valid, 76238 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 149.17ms SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1004.96ms IncrementalHoareTripleChecker+Time [2021-11-07 15:52:11,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12645 Valid, 76238 Invalid, 917 Unknown, 0 Unchecked, 149.17ms Time], IncrementalHoareTripleChecker [331 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1004.96ms Time] [2021-11-07 15:52:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53617 states. [2021-11-07 15:52:13,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53617 to 53617. [2021-11-07 15:52:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53617 states, 53588 states have (on average 1.3120288124206911) internal successors, (70309), 53616 states have internal predecessors, (70309), 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 15:52:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53617 states to 53617 states and 70309 transitions. [2021-11-07 15:52:13,688 INFO L78 Accepts]: Start accepts. Automaton has 53617 states and 70309 transitions. Word has length 276 [2021-11-07 15:52:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:52:13,688 INFO L470 AbstractCegarLoop]: Abstraction has 53617 states and 70309 transitions. [2021-11-07 15:52:13,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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 15:52:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 53617 states and 70309 transitions. [2021-11-07 15:52:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-07 15:52:13,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:52:13,699 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:52:13,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 15:52:13,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 15:52:13,909 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-07 15:52:13,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:52:13,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1241385145, now seen corresponding path program 2 times [2021-11-07 15:52:13,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:52:13,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641563338] [2021-11-07 15:52:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:52:13,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:52:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:52:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-07 15:52:15,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:52:15,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641563338] [2021-11-07 15:52:15,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641563338] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 15:52:15,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9953629] [2021-11-07 15:52:15,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 15:52:15,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:52:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:52:15,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 15:52:15,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Killed by 15