./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 23:44:03,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:44:03,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:44:03,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:44:03,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:44:03,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:44:03,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:44:03,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:44:03,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:44:03,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:44:03,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:44:03,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:44:03,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:44:03,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:44:03,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:44:03,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:44:03,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:44:03,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:44:03,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:44:03,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:44:03,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:44:03,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:44:03,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:44:03,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:44:03,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:44:03,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:44:03,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:44:03,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:44:03,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:44:03,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:44:03,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:44:03,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:44:03,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:44:03,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:44:03,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:44:03,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:44:03,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:44:03,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:44:03,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:44:03,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:44:03,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:44:03,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:44:03,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:44:03,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:44:03,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:44:03,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:44:03,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:44:03,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:44:03,456 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:44:03,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:44:03,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:44:03,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:44:03,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:44:03,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:44:03,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:44:03,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:44:03,458 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:44:03,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:44:03,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:44:03,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:44:03,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:44:03,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:44:03,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:44:03,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:44:03,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:44:03,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:44:03,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:44:03,460 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:44:03,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:44:03,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:44:03,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:44:03,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da [2021-11-02 23:44:03,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:44:03,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:44:03,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:44:03,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:44:03,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:44:03,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-02 23:44:03,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7a0cd04/47a5ea572f8d4a58ac8430d6e98071f3/FLAG56f1496de [2021-11-02 23:44:04,517 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:44:04,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-02 23:44:04,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7a0cd04/47a5ea572f8d4a58ac8430d6e98071f3/FLAG56f1496de [2021-11-02 23:44:05,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7a0cd04/47a5ea572f8d4a58ac8430d6e98071f3 [2021-11-02 23:44:05,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:44:05,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:44:05,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:44:05,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:44:05,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:44:05,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:44:05" (1/1) ... [2021-11-02 23:44:05,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a3fccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:05, skipping insertion in model container [2021-11-02 23:44:05,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:44:05" (1/1) ... [2021-11-02 23:44:05,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:44:05,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:44:07,842 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-02 23:44:07,845 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-02 23:44:07,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:44:07,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:44:08,215 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-02 23:44:08,216 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-02 23:44:08,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:44:08,330 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:44:08,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08 WrapperNode [2021-11-02 23:44:08,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:44:08,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:44:08,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:44:08,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:44:08,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:08,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:08,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:44:08,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:44:08,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:44:08,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:44:08,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:08,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:44:09,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:44:09,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:44:09,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:44:09,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (1/1) ... [2021-11-02 23:44:09,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:44:09,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:44:09,685 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) [2021-11-02 23:44:09,692 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 [2021-11-02 23:44:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-02 23:44:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-02 23:44:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:44:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:44:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:44:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:44:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2021-11-02 23:44:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2021-11-02 23:44:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:44:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2021-11-02 23:44:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2021-11-02 23:44:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:44:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:44:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:44:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:44:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:44:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2021-11-02 23:44:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2021-11-02 23:44:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2021-11-02 23:44:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2021-11-02 23:44:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2021-11-02 23:44:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2021-11-02 23:44:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:44:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-02 23:44:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2021-11-02 23:44:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2021-11-02 23:44:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:44:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 23:44:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 23:44:17,819 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 23:44:17,819 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:44:17,820 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-02 23:44:17,820 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:44:17,821 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:44:17,821 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:44:17,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:44:17,850 INFO L299 CfgBuilder]: Removed 5315 assume(true) statements. [2021-11-02 23:44:17,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:44:17 BoogieIcfgContainer [2021-11-02 23:44:17,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:44:17,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:44:17,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:44:17,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:44:17,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:44:05" (1/3) ... [2021-11-02 23:44:17,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee6fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:44:17, skipping insertion in model container [2021-11-02 23:44:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:44:08" (2/3) ... [2021-11-02 23:44:17,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee6fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:44:17, skipping insertion in model container [2021-11-02 23:44:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:44:17" (3/3) ... [2021-11-02 23:44:17,865 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-02 23:44:17,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:44:17,870 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-11-02 23:44:17,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:44:17,936 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 [2021-11-02 23:44:17,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-11-02 23:44:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 5289 states, 5223 states have (on average 1.389048439594103) internal successors, (7255), 5264 states have internal predecessors, (7255), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-02 23:44:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-02 23:44:18,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:44:18,030 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] [2021-11-02 23:44:18,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:44:18,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:44:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash 549224019, now seen corresponding path program 1 times [2021-11-02 23:44:18,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:44:18,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802971955] [2021-11-02 23:44:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:44:18,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:44:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:44:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:44:18,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:44:18,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802971955] [2021-11-02 23:44:18,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802971955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:44:18,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:44:18,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:44:18,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435948436] [2021-11-02 23:44:18,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:44:18,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:44:18,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:44:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:44:18,642 INFO L87 Difference]: Start difference. First operand has 5289 states, 5223 states have (on average 1.389048439594103) internal successors, (7255), 5264 states have internal predecessors, (7255), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-02 23:44:20,763 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 [] [2021-11-02 23:45:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:45:28,857 INFO L93 Difference]: Finished difference Result 13136 states and 18162 transitions. [2021-11-02 23:45:28,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:45:28,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2021-11-02 23:45:28,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:45:28,892 INFO L225 Difference]: With dead ends: 13136 [2021-11-02 23:45:28,892 INFO L226 Difference]: Without dead ends: 7618 [2021-11-02 23:45:28,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:45:28,908 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 3962 mSDsluCounter, 7158 mSDsCounter, 0 mSdLazyCounter, 13743 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65023.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 13751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 147.52ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68693.67ms IncrementalHoareTripleChecker+Time [2021-11-02 23:45:28,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3962 Valid, 728 Invalid, 13751 Unknown, 0 Unchecked, 147.52ms Time], IncrementalHoareTripleChecker [7 Valid, 13743 Invalid, 1 Unknown, 0 Unchecked, 68693.67ms Time] [2021-11-02 23:45:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2021-11-02 23:45:29,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 7574. [2021-11-02 23:45:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7480 states have (on average 1.345187165775401) internal successors, (10062), 7527 states have internal predecessors, (10062), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 34 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-02 23:45:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 10146 transitions. [2021-11-02 23:45:29,123 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 10146 transitions. Word has length 123 [2021-11-02 23:45:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:45:29,125 INFO L470 AbstractCegarLoop]: Abstraction has 7574 states and 10146 transitions. [2021-11-02 23:45:29,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-02 23:45:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 10146 transitions. [2021-11-02 23:45:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-02 23:45:29,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:45:29,130 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] [2021-11-02 23:45:29,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:45:29,130 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:45:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:45:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1561698784, now seen corresponding path program 1 times [2021-11-02 23:45:29,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:45:29,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092135105] [2021-11-02 23:45:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:45:29,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:45:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:45:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:45:29,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:45:29,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092135105] [2021-11-02 23:45:29,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092135105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:45:29,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:45:29,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:45:29,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927809091] [2021-11-02 23:45:29,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:45:29,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:45:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:45:29,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:45:29,548 INFO L87 Difference]: Start difference. First operand 7574 states and 10146 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-11-02 23:45:31,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:47:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:47:44,604 INFO L93 Difference]: Finished difference Result 21601 states and 28891 transitions. [2021-11-02 23:47:44,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:47:44,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 124 [2021-11-02 23:47:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:47:44,694 INFO L225 Difference]: With dead ends: 21601 [2021-11-02 23:47:44,694 INFO L226 Difference]: Without dead ends: 14303 [2021-11-02 23:47:44,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 87.39ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:47:44,709 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 10256 mSDsluCounter, 16406 mSDsCounter, 0 mSdLazyCounter, 25725 mSolverCounterSat, 78 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126862.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10262 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 25804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 237.28ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 25725 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133161.19ms IncrementalHoareTripleChecker+Time [2021-11-02 23:47:44,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10262 Valid, 140 Invalid, 25804 Unknown, 0 Unchecked, 237.28ms Time], IncrementalHoareTripleChecker [78 Valid, 25725 Invalid, 1 Unknown, 0 Unchecked, 133161.19ms Time] [2021-11-02 23:47:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2021-11-02 23:47:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 14210. [2021-11-02 23:47:45,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14210 states, 14008 states have (on average 1.3385208452312964) internal successors, (18750), 14079 states have internal predecessors, (18750), 118 states have call successors, (118), 48 states have call predecessors, (118), 48 states have return successors, (118), 94 states have call predecessors, (118), 118 states have call successors, (118) [2021-11-02 23:47:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14210 states to 14210 states and 18986 transitions. [2021-11-02 23:47:45,043 INFO L78 Accepts]: Start accepts. Automaton has 14210 states and 18986 transitions. Word has length 124 [2021-11-02 23:47:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:47:45,044 INFO L470 AbstractCegarLoop]: Abstraction has 14210 states and 18986 transitions. [2021-11-02 23:47:45,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-11-02 23:47:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14210 states and 18986 transitions. [2021-11-02 23:47:45,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-02 23:47:45,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:47:45,049 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:47:45,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:47:45,050 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:47:45,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:47:45,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1898243407, now seen corresponding path program 1 times [2021-11-02 23:47:45,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:47:45,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121873841] [2021-11-02 23:47:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:47:45,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:47:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:47:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:47:45,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:47:45,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121873841] [2021-11-02 23:47:45,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121873841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:47:45,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:47:45,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:47:45,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103107547] [2021-11-02 23:47:45,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:47:45,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:47:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:47:45,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:47:45,329 INFO L87 Difference]: Start difference. First operand 14210 states and 18986 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-02 23:47:47,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:48:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:48:52,371 INFO L93 Difference]: Finished difference Result 28835 states and 38545 transitions. [2021-11-02 23:48:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:48:52,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2021-11-02 23:48:52,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:48:52,434 INFO L225 Difference]: With dead ends: 28835 [2021-11-02 23:48:52,434 INFO L226 Difference]: Without dead ends: 14901 [2021-11-02 23:48:52,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:48:52,465 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 877 mSDsluCounter, 6516 mSDsCounter, 0 mSdLazyCounter, 12999 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62473.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 13006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.07ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12999 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66032.73ms IncrementalHoareTripleChecker+Time [2021-11-02 23:48:52,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 106 Invalid, 13006 Unknown, 0 Unchecked, 83.07ms Time], IncrementalHoareTripleChecker [6 Valid, 12999 Invalid, 1 Unknown, 0 Unchecked, 66032.73ms Time] [2021-11-02 23:48:52,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14901 states. [2021-11-02 23:48:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 14899. [2021-11-02 23:48:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14899 states, 14671 states have (on average 1.3352873014791085) internal successors, (19590), 14748 states have internal predecessors, (19590), 136 states have call successors, (136), 56 states have call predecessors, (136), 56 states have return successors, (136), 108 states have call predecessors, (136), 136 states have call successors, (136) [2021-11-02 23:48:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14899 states to 14899 states and 19862 transitions. [2021-11-02 23:48:52,811 INFO L78 Accepts]: Start accepts. Automaton has 14899 states and 19862 transitions. Word has length 138 [2021-11-02 23:48:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:48:52,812 INFO L470 AbstractCegarLoop]: Abstraction has 14899 states and 19862 transitions. [2021-11-02 23:48:52,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-02 23:48:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 14899 states and 19862 transitions. [2021-11-02 23:48:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-02 23:48:52,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:48:52,816 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] [2021-11-02 23:48:52,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:48:52,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:48:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:48:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1076035440, now seen corresponding path program 1 times [2021-11-02 23:48:52,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:48:52,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536158339] [2021-11-02 23:48:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:48:52,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:48:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:48:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:48:53,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:48:53,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536158339] [2021-11-02 23:48:53,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536158339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:48:53,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:48:53,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:48:53,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723609742] [2021-11-02 23:48:53,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:48:53,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:48:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:48:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:48:53,245 INFO L87 Difference]: Start difference. First operand 14899 states and 19862 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:48:55,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:51:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:51:13,447 INFO L93 Difference]: Finished difference Result 56599 states and 75820 transitions. [2021-11-02 23:51:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:51:13,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-02 23:51:13,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:51:13,596 INFO L225 Difference]: With dead ends: 56599 [2021-11-02 23:51:13,597 INFO L226 Difference]: Without dead ends: 41976 [2021-11-02 23:51:13,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 148.88ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:51:13,643 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 24118 mSDsluCounter, 19626 mSDsCounter, 0 mSdLazyCounter, 26468 mSolverCounterSat, 70 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128581.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24126 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 26539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 308.65ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 26468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137314.01ms IncrementalHoareTripleChecker+Time [2021-11-02 23:51:13,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24126 Valid, 162 Invalid, 26539 Unknown, 0 Unchecked, 308.65ms Time], IncrementalHoareTripleChecker [70 Valid, 26468 Invalid, 1 Unknown, 0 Unchecked, 137314.01ms Time] [2021-11-02 23:51:13,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41976 states. [2021-11-02 23:51:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41976 to 41700. [2021-11-02 23:51:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41700 states, 41166 states have (on average 1.3440946412087644) internal successors, (55331), 41315 states have internal predecessors, (55331), 346 states have call successors, (346), 152 states have call predecessors, (346), 152 states have return successors, (346), 270 states have call predecessors, (346), 346 states have call successors, (346) [2021-11-02 23:51:14,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41700 states to 41700 states and 56023 transitions. [2021-11-02 23:51:14,653 INFO L78 Accepts]: Start accepts. Automaton has 41700 states and 56023 transitions. Word has length 145 [2021-11-02 23:51:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:51:14,654 INFO L470 AbstractCegarLoop]: Abstraction has 41700 states and 56023 transitions. [2021-11-02 23:51:14,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:51:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 41700 states and 56023 transitions. [2021-11-02 23:51:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-02 23:51:14,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:51:14,658 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] [2021-11-02 23:51:14,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:51:14,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:51:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:51:14,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1295073280, now seen corresponding path program 1 times [2021-11-02 23:51:14,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:51:14,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271773878] [2021-11-02 23:51:14,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:51:14,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:51:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:51:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:51:14,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:51:14,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271773878] [2021-11-02 23:51:14,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271773878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:51:14,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:51:14,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:51:14,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418131733] [2021-11-02 23:51:14,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:51:14,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:51:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:51:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:51:14,877 INFO L87 Difference]: Start difference. First operand 41700 states and 56023 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:51:16,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:52:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:52:27,241 INFO L93 Difference]: Finished difference Result 122222 states and 164572 transitions. [2021-11-02 23:52:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:52:27,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-11-02 23:52:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:52:27,469 INFO L225 Difference]: With dead ends: 122222 [2021-11-02 23:52:27,470 INFO L226 Difference]: Without dead ends: 80798 [2021-11-02 23:52:27,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:52:27,554 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 6115 mSDsluCounter, 6515 mSDsCounter, 0 mSdLazyCounter, 13083 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63967.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 13091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69766.51ms IncrementalHoareTripleChecker+Time [2021-11-02 23:52:27,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6115 Valid, 110 Invalid, 13091 Unknown, 0 Unchecked, 83.30ms Time], IncrementalHoareTripleChecker [7 Valid, 13083 Invalid, 1 Unknown, 0 Unchecked, 69766.51ms Time] [2021-11-02 23:52:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80798 states. [2021-11-02 23:52:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80798 to 80678. [2021-11-02 23:52:29,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80678 states, 79708 states have (on average 1.3474682591458824) internal successors, (107404), 79965 states have internal predecessors, (107404), 638 states have call successors, (638), 296 states have call predecessors, (638), 296 states have return successors, (638), 490 states have call predecessors, (638), 638 states have call successors, (638) [2021-11-02 23:52:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80678 states to 80678 states and 108680 transitions. [2021-11-02 23:52:29,490 INFO L78 Accepts]: Start accepts. Automaton has 80678 states and 108680 transitions. Word has length 147 [2021-11-02 23:52:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:52:29,490 INFO L470 AbstractCegarLoop]: Abstraction has 80678 states and 108680 transitions. [2021-11-02 23:52:29,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:52:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 80678 states and 108680 transitions. [2021-11-02 23:52:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-02 23:52:29,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:52:29,494 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] [2021-11-02 23:52:29,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:52:29,495 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:52:29,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:52:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1861881626, now seen corresponding path program 1 times [2021-11-02 23:52:29,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:52:29,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325422808] [2021-11-02 23:52:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:52:29,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:52:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:52:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:52:29,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:52:29,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325422808] [2021-11-02 23:52:29,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325422808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:52:29,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:52:29,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:52:29,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33240758] [2021-11-02 23:52:29,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:52:29,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:52:29,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:52:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:52:29,709 INFO L87 Difference]: Start difference. First operand 80678 states and 108680 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:52:31,755 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 [] [2021-11-02 23:53:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:53:49,881 INFO L93 Difference]: Finished difference Result 233282 states and 315042 transitions. [2021-11-02 23:53:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:53:49,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-11-02 23:53:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:53:50,456 INFO L225 Difference]: With dead ends: 233282 [2021-11-02 23:53:50,457 INFO L226 Difference]: Without dead ends: 152880 [2021-11-02 23:53:50,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:53:50,732 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 6115 mSDsluCounter, 6514 mSDsCounter, 0 mSdLazyCounter, 13679 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69034.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 13687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.45ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13679 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75788.21ms IncrementalHoareTripleChecker+Time [2021-11-02 23:53:50,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6115 Valid, 124 Invalid, 13687 Unknown, 0 Unchecked, 76.45ms Time], IncrementalHoareTripleChecker [7 Valid, 13679 Invalid, 1 Unknown, 0 Unchecked, 75788.21ms Time] [2021-11-02 23:53:50,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152880 states. [2021-11-02 23:53:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152880 to 152772. [2021-11-02 23:53:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152772 states, 151144 states have (on average 1.3513933732070078) internal successors, (204255), 151563 states have internal predecessors, (204255), 1080 states have call successors, (1080), 512 states have call predecessors, (1080), 512 states have return successors, (1080), 824 states have call predecessors, (1080), 1080 states have call successors, (1080) [2021-11-02 23:53:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152772 states to 152772 states and 206415 transitions. [2021-11-02 23:53:54,841 INFO L78 Accepts]: Start accepts. Automaton has 152772 states and 206415 transitions. Word has length 149 [2021-11-02 23:53:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:53:54,842 INFO L470 AbstractCegarLoop]: Abstraction has 152772 states and 206415 transitions. [2021-11-02 23:53:54,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:53:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 152772 states and 206415 transitions. [2021-11-02 23:53:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-02 23:53:54,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:53:54,844 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-02 23:53:54,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:53:54,845 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:53:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:53:54,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2116182261, now seen corresponding path program 1 times [2021-11-02 23:53:54,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:53:54,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18741340] [2021-11-02 23:53:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:53:54,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:53:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:53:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:53:55,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:53:55,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18741340] [2021-11-02 23:53:55,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18741340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:53:55,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:53:55,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:53:55,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989328462] [2021-11-02 23:53:55,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:53:55,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:53:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:53:55,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:53:55,211 INFO L87 Difference]: Start difference. First operand 152772 states and 206415 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-02 23:53:57,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:55:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:55:43,035 INFO L93 Difference]: Finished difference Result 456252 states and 616887 transitions. [2021-11-02 23:55:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:55:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2021-11-02 23:55:43,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:55:44,285 INFO L225 Difference]: With dead ends: 456252 [2021-11-02 23:55:44,285 INFO L226 Difference]: Without dead ends: 303804 [2021-11-02 23:55:44,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:55:44,526 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 6188 mSDsluCounter, 6521 mSDsCounter, 0 mSdLazyCounter, 19152 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92831.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6188 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 95.03ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19152 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101043.54ms IncrementalHoareTripleChecker+Time [2021-11-02 23:55:44,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6188 Valid, 132 Invalid, 19158 Unknown, 0 Unchecked, 95.03ms Time], IncrementalHoareTripleChecker [5 Valid, 19152 Invalid, 1 Unknown, 0 Unchecked, 101043.54ms Time] [2021-11-02 23:55:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303804 states. [2021-11-02 23:55:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303804 to 303732. [2021-11-02 23:55:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303732 states, 300512 states have (on average 1.3514235704397828) internal successors, (406119), 301315 states have internal predecessors, (406119), 2160 states have call successors, (2160), 1024 states have call predecessors, (2160), 1024 states have return successors, (2160), 1648 states have call predecessors, (2160), 2160 states have call successors, (2160) [2021-11-02 23:55:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303732 states to 303732 states and 410439 transitions. [2021-11-02 23:55:52,232 INFO L78 Accepts]: Start accepts. Automaton has 303732 states and 410439 transitions. Word has length 161 [2021-11-02 23:55:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:55:52,233 INFO L470 AbstractCegarLoop]: Abstraction has 303732 states and 410439 transitions. [2021-11-02 23:55:52,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-02 23:55:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 303732 states and 410439 transitions. [2021-11-02 23:55:52,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-02 23:55:52,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:55:52,236 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-02 23:55:52,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:55:52,236 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:55:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:55:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2106398477, now seen corresponding path program 1 times [2021-11-02 23:55:52,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:55:52,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112207692] [2021-11-02 23:55:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:55:52,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:55:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:55:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:55:52,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:55:52,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112207692] [2021-11-02 23:55:52,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112207692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:55:52,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:55:52,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:55:52,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87094261] [2021-11-02 23:55:52,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:55:52,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:55:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:55:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:55:52,852 INFO L87 Difference]: Start difference. First operand 303732 states and 410439 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-02 23:55:54,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:57:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:57:43,053 INFO L93 Difference]: Finished difference Result 758244 states and 1025007 transitions. [2021-11-02 23:57:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:57:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2021-11-02 23:57:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:57:44,938 INFO L225 Difference]: With dead ends: 758244 [2021-11-02 23:57:44,939 INFO L226 Difference]: Without dead ends: 454150 [2021-11-02 23:57:45,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:57:45,402 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 6184 mSDsluCounter, 6525 mSDsCounter, 0 mSdLazyCounter, 19158 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90038.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6184 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.34ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98874.42ms IncrementalHoareTripleChecker+Time [2021-11-02 23:57:45,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6184 Valid, 132 Invalid, 19164 Unknown, 0 Unchecked, 76.34ms Time], IncrementalHoareTripleChecker [5 Valid, 19158 Invalid, 1 Unknown, 0 Unchecked, 98874.42ms Time] [2021-11-02 23:57:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454150 states. [2021-11-02 23:57:55,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454150 to 454078. [2021-11-02 23:57:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454078 states, 449266 states have (on average 1.3517314909207463) internal successors, (607287), 450453 states have internal predecessors, (607287), 3240 states have call successors, (3240), 1536 states have call predecessors, (3240), 1536 states have return successors, (3240), 2472 states have call predecessors, (3240), 3240 states have call successors, (3240) [2021-11-02 23:57:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454078 states to 454078 states and 613767 transitions. [2021-11-02 23:57:57,938 INFO L78 Accepts]: Start accepts. Automaton has 454078 states and 613767 transitions. Word has length 161 [2021-11-02 23:57:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:57:57,939 INFO L470 AbstractCegarLoop]: Abstraction has 454078 states and 613767 transitions. [2021-11-02 23:57:57,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-02 23:57:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 454078 states and 613767 transitions. [2021-11-02 23:57:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-02 23:57:57,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:57:57,963 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-02 23:57:57,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:57:57,964 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-02 23:57:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:57:57,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1524407422, now seen corresponding path program 1 times [2021-11-02 23:57:57,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:57:57,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33800846] [2021-11-02 23:57:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:57:57,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:57:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:57:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 23:57:58,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:57:58,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33800846] [2021-11-02 23:57:58,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33800846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:57:58,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:57:58,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:57:58,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059829724] [2021-11-02 23:57:58,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:57:58,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:57:58,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:57:58,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:57:58,209 INFO L87 Difference]: Start difference. First operand 454078 states and 613767 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-02 23:58:00,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15