./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--firewire--firewire-ohci.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 566d5f55091b8d9986e40109bb4ed7c757a10d51a53e185fb47e2dfa177e6461 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 06:34:16,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 06:34:16,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 06:34:16,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 06:34:16,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 06:34:16,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 06:34:16,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 06:34:16,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 06:34:16,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 06:34:16,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 06:34:17,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 06:34:17,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 06:34:17,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 06:34:17,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 06:34:17,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 06:34:17,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 06:34:17,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 06:34:17,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 06:34:17,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 06:34:17,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 06:34:17,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 06:34:17,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 06:34:17,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 06:34:17,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 06:34:17,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 06:34:17,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 06:34:17,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 06:34:17,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 06:34:17,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 06:34:17,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 06:34:17,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 06:34:17,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 06:34:17,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 06:34:17,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 06:34:17,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 06:34:17,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 06:34:17,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 06:34:17,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 06:34:17,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 06:34:17,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 06:34:17,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 06:34:17,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 06:34:17,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 06:34:17,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 06:34:17,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 06:34:17,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 06:34:17,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 06:34:17,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 06:34:17,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 06:34:17,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 06:34:17,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 06:34:17,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:34:17,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 06:34:17,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 06:34:17,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 06:34:17,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 06:34:17,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 06:34:17,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 06:34:17,060 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 06:34:17,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 06:34:17,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 06:34:17,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566d5f55091b8d9986e40109bb4ed7c757a10d51a53e185fb47e2dfa177e6461 [2021-11-04 06:34:17,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 06:34:17,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 06:34:17,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 06:34:17,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 06:34:17,281 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 06:34:17,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i [2021-11-04 06:34:17,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb0f908c/6ded13f440714335bfe05e57d4487b8c/FLAG7f8075891 [2021-11-04 06:34:17,927 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 06:34:17,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i [2021-11-04 06:34:17,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb0f908c/6ded13f440714335bfe05e57d4487b8c/FLAG7f8075891 [2021-11-04 06:34:18,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb0f908c/6ded13f440714335bfe05e57d4487b8c [2021-11-04 06:34:18,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 06:34:18,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 06:34:18,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 06:34:18,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 06:34:18,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 06:34:18,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:34:18" (1/1) ... [2021-11-04 06:34:18,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5043e7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:18, skipping insertion in model container [2021-11-04 06:34:18,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:34:18" (1/1) ... [2021-11-04 06:34:18,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 06:34:18,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 06:34:20,155 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-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i[267295,267308] [2021-11-04 06:34:20,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:34:20,377 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 06:34:20,706 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-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i[267295,267308] [2021-11-04 06:34:20,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:34:20,793 INFO L208 MainTranslator]: Completed translation [2021-11-04 06:34:20,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20 WrapperNode [2021-11-04 06:34:20,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 06:34:20,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 06:34:20,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 06:34:20,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 06:34:20,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:20,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:23,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 06:34:23,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 06:34:23,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 06:34:23,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 06:34:23,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:23,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:23,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:23,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:24,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:25,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:25,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:25,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 06:34:25,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 06:34:25,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 06:34:25,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 06:34:25,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (1/1) ... [2021-11-04 06:34:25,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:34:25,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 06:34:25,981 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) [2021-11-04 06:34:26,005 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 [2021-11-04 06:34:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 06:34:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 06:34:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 06:34:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 06:34:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 06:34:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 06:34:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 06:34:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 06:34:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 06:34:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 06:34:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 06:34:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 06:34:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 06:34:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 06:34:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 06:34:41,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 06:34:41,680 INFO L299 CfgBuilder]: Removed 17487 assume(true) statements. [2021-11-04 06:34:41,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:34:41 BoogieIcfgContainer [2021-11-04 06:34:41,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 06:34:41,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 06:34:41,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 06:34:41,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 06:34:41,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:34:18" (1/3) ... [2021-11-04 06:34:41,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd02189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:34:41, skipping insertion in model container [2021-11-04 06:34:41,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:34:20" (2/3) ... [2021-11-04 06:34:41,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd02189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:34:41, skipping insertion in model container [2021-11-04 06:34:41,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:34:41" (3/3) ... [2021-11-04 06:34:41,707 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--firewire--firewire-ohci.ko-entry_point.cil.out.i [2021-11-04 06:34:41,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 06:34:41,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 176 error locations. [2021-11-04 06:34:41,791 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 06:34:41,795 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 [2021-11-04 06:34:41,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 176 error locations. [2021-11-04 06:34:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 18073 states, 17896 states have (on average 1.3950044702726867) internal successors, (24965), 18072 states have internal predecessors, (24965), 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) [2021-11-04 06:34:41,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 06:34:41,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:34:41,987 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] [2021-11-04 06:34:41,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-04 06:34:41,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:34:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash -216420431, now seen corresponding path program 1 times [2021-11-04 06:34:42,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:34:42,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996128372] [2021-11-04 06:34:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:34:42,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:34:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:34:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:34:42,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:34:42,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996128372] [2021-11-04 06:34:42,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996128372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:34:42,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:34:42,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:34:42,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624906630] [2021-11-04 06:34:42,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:34:42,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 06:34:42,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:34:42,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 06:34:42,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:34:42,668 INFO L87 Difference]: Start difference. First operand has 18073 states, 17896 states have (on average 1.3950044702726867) internal successors, (24965), 18072 states have internal predecessors, (24965), 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 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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) [2021-11-04 06:34:44,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:34:55,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:35:06,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:35:15,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:35:18,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:35:22,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:35:25,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:36:03,971 INFO L93 Difference]: Finished difference Result 36142 states and 49925 transitions. [2021-11-04 06:36:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 06:36:03,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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 94 [2021-11-04 06:36:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:36:04,048 INFO L225 Difference]: With dead ends: 36142 [2021-11-04 06:36:04,049 INFO L226 Difference]: Without dead ends: 17872 [2021-11-04 06:36:04,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:36:04,078 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24553 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72466.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 24560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24553 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79343.74ms IncrementalHoareTripleChecker+Time [2021-11-04 06:36:04,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 197 Invalid, 24560 Unknown, 0 Unchecked, 98.40ms Time], IncrementalHoareTripleChecker [0 Valid, 24553 Invalid, 7 Unknown, 0 Unchecked, 79343.74ms Time] [2021-11-04 06:36:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17872 states. [2021-11-04 06:36:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17872 to 17872. [2021-11-04 06:36:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17872 states, 17696 states have (on average 1.376525768535262) internal successors, (24359), 17871 states have internal predecessors, (24359), 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) [2021-11-04 06:36:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17872 states to 17872 states and 24359 transitions. [2021-11-04 06:36:04,529 INFO L78 Accepts]: Start accepts. Automaton has 17872 states and 24359 transitions. Word has length 94 [2021-11-04 06:36:04,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:36:04,530 INFO L470 AbstractCegarLoop]: Abstraction has 17872 states and 24359 transitions. [2021-11-04 06:36:04,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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) [2021-11-04 06:36:04,530 INFO L276 IsEmpty]: Start isEmpty. Operand 17872 states and 24359 transitions. [2021-11-04 06:36:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 06:36:04,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:36:04,538 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] [2021-11-04 06:36:04,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 06:36:04,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-04 06:36:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:36:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 555921723, now seen corresponding path program 1 times [2021-11-04 06:36:04,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:36:04,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274162398] [2021-11-04 06:36:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:36:04,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:36:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:36:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:36:04,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:36:04,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274162398] [2021-11-04 06:36:04,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274162398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:36:04,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:36:04,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:36:04,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191622074] [2021-11-04 06:36:04,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:36:04,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:36:04,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:36:04,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:36:04,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:36:04,838 INFO L87 Difference]: Start difference. First operand 17872 states and 24359 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-04 06:36:06,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:21,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:25,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:30,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:51,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:05,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:11,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:14,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:21,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:24,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:26,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:31,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:38:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:38:58,833 INFO L93 Difference]: Finished difference Result 35720 states and 48697 transitions. [2021-11-04 06:38:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:38:58,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2021-11-04 06:38:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:38:58,891 INFO L225 Difference]: With dead ends: 35720 [2021-11-04 06:38:58,891 INFO L226 Difference]: Without dead ends: 17876 [2021-11-04 06:38:58,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:38:58,920 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 24252 mSDsCounter, 0 mSdLazyCounter, 48694 mSolverCounterSat, 6 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157625.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 284.28ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48694 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 171728.72ms IncrementalHoareTripleChecker+Time [2021-11-04 06:38:58,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48712 Unknown, 0 Unchecked, 284.28ms Time], IncrementalHoareTripleChecker [6 Valid, 48694 Invalid, 12 Unknown, 0 Unchecked, 171728.72ms Time] [2021-11-04 06:38:58,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17876 states. [2021-11-04 06:38:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17876 to 17876. [2021-11-04 06:38:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17876 states, 17700 states have (on average 1.3764406779661016) internal successors, (24363), 17875 states have internal predecessors, (24363), 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) [2021-11-04 06:38:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17876 states to 17876 states and 24363 transitions. [2021-11-04 06:38:59,309 INFO L78 Accepts]: Start accepts. Automaton has 17876 states and 24363 transitions. Word has length 94 [2021-11-04 06:38:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:38:59,310 INFO L470 AbstractCegarLoop]: Abstraction has 17876 states and 24363 transitions. [2021-11-04 06:38:59,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-04 06:38:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 17876 states and 24363 transitions. [2021-11-04 06:38:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-04 06:38:59,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:38:59,313 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] [2021-11-04 06:38:59,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 06:38:59,314 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-04 06:38:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:38:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash -790016581, now seen corresponding path program 1 times [2021-11-04 06:38:59,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:38:59,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677711756] [2021-11-04 06:38:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:38:59,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:38:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:38:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 06:38:59,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:38:59,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677711756] [2021-11-04 06:38:59,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677711756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:38:59,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:38:59,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:38:59,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540264501] [2021-11-04 06:38:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:38:59,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:38:59,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:38:59,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:38:59,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:38:59,617 INFO L87 Difference]: Start difference. First operand 17876 states and 24363 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-04 06:39:01,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:18,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:22,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:26,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:36,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:49,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:52,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:55,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:05,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:11,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:15,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:18,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:21,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:23,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:26,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:29,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:35,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:42:03,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:42:03,587 INFO L93 Difference]: Finished difference Result 35735 states and 48722 transitions. [2021-11-04 06:42:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:42:03,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-04 06:42:03,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:42:03,619 INFO L225 Difference]: With dead ends: 35735 [2021-11-04 06:42:03,620 INFO L226 Difference]: Without dead ends: 17891 [2021-11-04 06:42:03,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:42:03,643 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 24252 mSDsCounter, 0 mSdLazyCounter, 48678 mSolverCounterSat, 28 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 165449.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 269.20ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 48678 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182015.61ms IncrementalHoareTripleChecker+Time [2021-11-04 06:42:03,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48723 Unknown, 0 Unchecked, 269.20ms Time], IncrementalHoareTripleChecker [28 Valid, 48678 Invalid, 17 Unknown, 0 Unchecked, 182015.61ms Time] [2021-11-04 06:42:03,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17891 states. [2021-11-04 06:42:03,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17891 to 17891. [2021-11-04 06:42:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17891 states, 17715 states have (on average 1.3761219305673158) internal successors, (24378), 17890 states have internal predecessors, (24378), 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) [2021-11-04 06:42:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17891 states to 17891 states and 24378 transitions. [2021-11-04 06:42:03,944 INFO L78 Accepts]: Start accepts. Automaton has 17891 states and 24378 transitions. Word has length 98 [2021-11-04 06:42:03,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:42:03,946 INFO L470 AbstractCegarLoop]: Abstraction has 17891 states and 24378 transitions. [2021-11-04 06:42:03,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-04 06:42:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand 17891 states and 24378 transitions. [2021-11-04 06:42:03,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-04 06:42:03,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:42:03,951 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] [2021-11-04 06:42:03,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 06:42:03,951 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-04 06:42:03,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:42:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2042518961, now seen corresponding path program 1 times [2021-11-04 06:42:03,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:42:03,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889780767] [2021-11-04 06:42:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:42:03,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:42:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:42:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:42:04,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:42:04,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889780767] [2021-11-04 06:42:04,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889780767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:42:04,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:42:04,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:42:04,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372127474] [2021-11-04 06:42:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:42:04,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:42:04,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:42:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:42:04,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:42:04,220 INFO L87 Difference]: Start difference. First operand 17891 states and 24378 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:42:06,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:42:35,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:42:38,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:42:43,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:42:57,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:43:04,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:43:07,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:43:15,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:43:21,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:45:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:45:44,006 INFO L93 Difference]: Finished difference Result 50734 states and 69104 transitions. [2021-11-04 06:45:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:45:44,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-04 06:45:44,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:45:44,076 INFO L225 Difference]: With dead ends: 50734 [2021-11-04 06:45:44,077 INFO L226 Difference]: Without dead ends: 32947 [2021-11-04 06:45:44,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:45:44,110 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 20461 mSDsluCounter, 24291 mSDsCounter, 0 mSdLazyCounter, 48697 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185448.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20461 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 349.14ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48697 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 216005.08ms IncrementalHoareTripleChecker+Time [2021-11-04 06:45:44,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20461 Valid, 0 Invalid, 48707 Unknown, 0 Unchecked, 349.14ms Time], IncrementalHoareTripleChecker [1 Valid, 48697 Invalid, 9 Unknown, 0 Unchecked, 216005.08ms Time] [2021-11-04 06:45:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32947 states. [2021-11-04 06:45:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32947 to 23267. [2021-11-04 06:45:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23267 states, 23091 states have (on average 1.371659954094669) internal successors, (31673), 23266 states have internal predecessors, (31673), 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) [2021-11-04 06:45:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23267 states to 23267 states and 31673 transitions. [2021-11-04 06:45:44,611 INFO L78 Accepts]: Start accepts. Automaton has 23267 states and 31673 transitions. Word has length 113 [2021-11-04 06:45:44,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:45:44,614 INFO L470 AbstractCegarLoop]: Abstraction has 23267 states and 31673 transitions. [2021-11-04 06:45:44,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:45:44,614 INFO L276 IsEmpty]: Start isEmpty. Operand 23267 states and 31673 transitions. [2021-11-04 06:45:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-04 06:45:44,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:45:44,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:45:44,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 06:45:44,618 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr172ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-04 06:45:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:45:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1198963369, now seen corresponding path program 1 times [2021-11-04 06:45:44,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:45:44,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647693442] [2021-11-04 06:45:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:45:44,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:45:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:45:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:45:44,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:45:44,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647693442] [2021-11-04 06:45:44,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647693442] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:45:44,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:45:44,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:45:44,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45397157] [2021-11-04 06:45:44,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:45:44,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:45:44,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:45:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:45:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:45:44,915 INFO L87 Difference]: Start difference. First operand 23267 states and 31673 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:45:46,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:12,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:14,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:28,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:35,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:38,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:41,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:47,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:46:53,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15