/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:59:57,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:59:57,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:59:58,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:59:58,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:59:58,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:59:58,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:59:58,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:59:58,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:59:58,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:59:58,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:59:58,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:59:58,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:59:58,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:59:58,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:59:58,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:59:58,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:59:58,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:59:58,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:59:58,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:59:58,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:59:58,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:59:58,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:59:58,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:59:58,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 20:59:58,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 20:59:58,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 20:59:58,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 20:59:58,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 20:59:58,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 20:59:58,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:59:58,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:59:58,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:59:58,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:59:58,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:59:58,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:59:58,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:59:58,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:59:58,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:59:58,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:59:58,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:59:58,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:59:58,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:59:58,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:59:58,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:59:58,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:59:58,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:59:58,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:59:58,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:59:58,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:59:58,112 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:59:58,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:59:58,112 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:59:58,112 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:59:58,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:59:58,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:59:58,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:59:58,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:59:58,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:59:58,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:59:58,114 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:59:58,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:59:58,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:59:58,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:59:58,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:59:58,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:59:58,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:59:58,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:59:58,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:59:58,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:59:58,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:59:58,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:59:58,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:59:58,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:59:58,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:59:58,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:59:58,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:59:58,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:59:58,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:59:58,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:59:58,590 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:59:58,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-15 20:59:58,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe230afba/c06ae96bba694829a7a9d731e2177f0d/FLAG0e48531ed [2022-10-15 20:59:59,843 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:59:59,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-15 20:59:59,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe230afba/c06ae96bba694829a7a9d731e2177f0d/FLAG0e48531ed [2022-10-15 21:00:00,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe230afba/c06ae96bba694829a7a9d731e2177f0d [2022-10-15 21:00:00,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:00:00,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:00:00,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:00:00,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:00:00,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:00:00,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:00:00" (1/1) ... [2022-10-15 21:00:00,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5641281c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:00, skipping insertion in model container [2022-10-15 21:00:00,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:00:00" (1/1) ... [2022-10-15 21:00:00,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:00:00,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:00:03,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-10-15 21:00:03,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:00:03,456 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:00:04,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-10-15 21:00:04,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:00:04,380 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:00:04,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04 WrapperNode [2022-10-15 21:00:04,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:00:04,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:00:04,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:00:04,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:00:04,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:04,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:04,904 INFO L138 Inliner]: procedures = 273, calls = 4073, calls flagged for inlining = 105, calls inlined = 96, statements flattened = 9402 [2022-10-15 21:00:04,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:00:04,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:00:04,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:00:04,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:00:04,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:04,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:00:05,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:00:05,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:00:05,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:00:05,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (1/1) ... [2022-10-15 21:00:05,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:00:05,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:05,655 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) [2022-10-15 21:00:05,766 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 [2022-10-15 21:00:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-15 21:00:05,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-15 21:00:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-10-15 21:00:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-10-15 21:00:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-15 21:00:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-15 21:00:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-15 21:00:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-15 21:00:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-15 21:00:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:00:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:00:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-10-15 21:00:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-10-15 21:00:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-15 21:00:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-15 21:00:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-10-15 21:00:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-10-15 21:00:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:00:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:00:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-10-15 21:00:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-10-15 21:00:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-10-15 21:00:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-10-15 21:00:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:00:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:00:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-10-15 21:00:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-10-15 21:00:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-10-15 21:00:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-10-15 21:00:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-10-15 21:00:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-10-15 21:00:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-10-15 21:00:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-10-15 21:00:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:00:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:00:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:00:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:00:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-15 21:00:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-15 21:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-10-15 21:00:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-10-15 21:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-10-15 21:00:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-10-15 21:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:00:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-10-15 21:00:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-10-15 21:00:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:00:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:00:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-10-15 21:00:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-10-15 21:00:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-10-15 21:00:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-10-15 21:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:00:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:00:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-10-15 21:00:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-10-15 21:00:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-10-15 21:00:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-10-15 21:00:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2022-10-15 21:00:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2022-10-15 21:00:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-10-15 21:00:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-10-15 21:00:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-10-15 21:00:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-10-15 21:00:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:00:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2022-10-15 21:00:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2022-10-15 21:00:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-15 21:00:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-10-15 21:00:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-10-15 21:00:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-10-15 21:00:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-10-15 21:00:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-10-15 21:00:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-10-15 21:00:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:00:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-10-15 21:00:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-10-15 21:00:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-10-15 21:00:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-10-15 21:00:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:00:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:00:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-10-15 21:00:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-10-15 21:00:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-15 21:00:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-15 21:00:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-10-15 21:00:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-10-15 21:00:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:00:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-10-15 21:00:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-10-15 21:00:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:00:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:00:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:00:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:00:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:00:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:00:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:00:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-10-15 21:00:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-10-15 21:00:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-15 21:00:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-15 21:00:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-10-15 21:00:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-10-15 21:00:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-10-15 21:00:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-10-15 21:00:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-15 21:00:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-15 21:00:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:00:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:00:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:00:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-10-15 21:00:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-10-15 21:00:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-10-15 21:00:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-10-15 21:00:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:00:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-10-15 21:00:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-10-15 21:00:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:00:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-10-15 21:00:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-10-15 21:00:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-10-15 21:00:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-10-15 21:00:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:00:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:00:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-10-15 21:00:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-10-15 21:00:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-10-15 21:00:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-10-15 21:00:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-10-15 21:00:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-10-15 21:00:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-10-15 21:00:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-10-15 21:00:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:00:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:00:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-10-15 21:00:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-10-15 21:00:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-15 21:00:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-15 21:00:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:00:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-15 21:00:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-15 21:00:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-10-15 21:00:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-10-15 21:00:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-10-15 21:00:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-10-15 21:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-10-15 21:00:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-10-15 21:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:00:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-15 21:00:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-15 21:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:00:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-10-15 21:00:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-10-15 21:00:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-10-15 21:00:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-10-15 21:00:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:00:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:00:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:00:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-10-15 21:00:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-10-15 21:00:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-10-15 21:00:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-10-15 21:00:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-15 21:00:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-15 21:00:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:00:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:00:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-10-15 21:00:05,875 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-10-15 21:00:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-10-15 21:00:05,875 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-10-15 21:00:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-10-15 21:00:05,875 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-10-15 21:00:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-15 21:00:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-15 21:00:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-15 21:00:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-15 21:00:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-10-15 21:00:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-10-15 21:00:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-10-15 21:00:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-10-15 21:00:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-10-15 21:00:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-10-15 21:00:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-10-15 21:00:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-10-15 21:00:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-15 21:00:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-15 21:00:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-10-15 21:00:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-10-15 21:00:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-15 21:00:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-15 21:00:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-10-15 21:00:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-10-15 21:00:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:00:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-10-15 21:00:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-10-15 21:00:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-10-15 21:00:05,879 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-10-15 21:00:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:00:05,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:00:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:00:05,879 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:00:06,990 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:00:06,998 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:00:28,533 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:00:28,584 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:00:28,584 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:00:28,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:00:28 BoogieIcfgContainer [2022-10-15 21:00:28,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:00:28,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:00:28,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:00:28,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:00:28,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:00:00" (1/3) ... [2022-10-15 21:00:28,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a233fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:00:28, skipping insertion in model container [2022-10-15 21:00:28,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:04" (2/3) ... [2022-10-15 21:00:28,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a233fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:00:28, skipping insertion in model container [2022-10-15 21:00:28,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:00:28" (3/3) ... [2022-10-15 21:00:28,610 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-15 21:00:28,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:00:28,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 622 error locations. [2022-10-15 21:00:28,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:00:28,848 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23235881, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:00:28,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 622 error locations. [2022-10-15 21:00:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 4325 states, 3007 states have (on average 1.5819753907549052) internal successors, (4757), 3654 states have internal predecessors, (4757), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) [2022-10-15 21:00:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:00:28,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:28,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:28,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [osst_chk_resultErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 619 more)] === [2022-10-15 21:00:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash -688532667, now seen corresponding path program 1 times [2022-10-15 21:00:28,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:28,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461156601] [2022-10-15 21:00:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:28,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:00:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:29,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:29,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461156601] [2022-10-15 21:00:29,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461156601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:29,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:29,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:00:29,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264427624] [2022-10-15 21:00:29,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:29,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:29,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:29,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:29,733 INFO L87 Difference]: Start difference. First operand has 4325 states, 3007 states have (on average 1.5819753907549052) internal successors, (4757), 3654 states have internal predecessors, (4757), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:00:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:30,431 INFO L93 Difference]: Finished difference Result 8606 states and 12140 transitions. [2022-10-15 21:00:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:30,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 21:00:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:30,498 INFO L225 Difference]: With dead ends: 8606 [2022-10-15 21:00:30,499 INFO L226 Difference]: Without dead ends: 4261 [2022-10-15 21:00:30,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:30,560 INFO L413 NwaCegarLoop]: 5889 mSDtfsCounter, 5885 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5885 SdHoareTripleChecker+Valid, 5889 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:30,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5885 Valid, 5889 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2022-10-15 21:00:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 4261. [2022-10-15 21:00:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 2990 states have (on average 1.5588628762541805) internal successors, (4661), 3591 states have internal predecessors, (4661), 594 states have call successors, (594), 91 states have call predecessors, (594), 91 states have return successors, (594), 591 states have call predecessors, (594), 594 states have call successors, (594) [2022-10-15 21:00:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 5849 transitions. [2022-10-15 21:00:30,951 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 5849 transitions. Word has length 10 [2022-10-15 21:00:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:30,954 INFO L495 AbstractCegarLoop]: Abstraction has 4261 states and 5849 transitions. [2022-10-15 21:00:30,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:00:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 5849 transitions. [2022-10-15 21:00:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:00:30,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:30,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:30,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:00:30,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [osst_chk_resultErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 619 more)] === [2022-10-15 21:00:30,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash -688530745, now seen corresponding path program 1 times [2022-10-15 21:00:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:30,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950456786] [2022-10-15 21:00:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:00:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:31,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:31,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950456786] [2022-10-15 21:00:31,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950456786] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:31,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:31,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:00:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115753906] [2022-10-15 21:00:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:31,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:31,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:31,357 INFO L87 Difference]: Start difference. First operand 4261 states and 5849 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:00:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:31,640 INFO L93 Difference]: Finished difference Result 8511 states and 11685 transitions. [2022-10-15 21:00:31,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:31,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 21:00:31,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:31,676 INFO L225 Difference]: With dead ends: 8511 [2022-10-15 21:00:31,676 INFO L226 Difference]: Without dead ends: 4257 [2022-10-15 21:00:31,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:31,708 INFO L413 NwaCegarLoop]: 5843 mSDtfsCounter, 5838 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5838 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:31,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5838 Valid, 5843 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4257 states. [2022-10-15 21:00:32,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4257 to 4257. [2022-10-15 21:00:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4257 states, 2988 states have (on average 1.5582329317269077) internal successors, (4656), 3587 states have internal predecessors, (4656), 594 states have call successors, (594), 91 states have call predecessors, (594), 91 states have return successors, (594), 591 states have call predecessors, (594), 594 states have call successors, (594) [2022-10-15 21:00:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 5844 transitions. [2022-10-15 21:00:32,069 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 5844 transitions. Word has length 10 [2022-10-15 21:00:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:32,070 INFO L495 AbstractCegarLoop]: Abstraction has 4257 states and 5844 transitions. [2022-10-15 21:00:32,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:00:32,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 5844 transitions. [2022-10-15 21:00:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:00:32,075 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:32,075 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:00:32,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:00:32,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [osst_chk_resultErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 619 more)] === [2022-10-15 21:00:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2014309566, now seen corresponding path program 1 times [2022-10-15 21:00:32,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:32,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4644434] [2022-10-15 21:00:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:32,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:00:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:00:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:00:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:32,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4644434] [2022-10-15 21:00:32,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4644434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:32,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:32,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:00:32,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638337371] [2022-10-15 21:00:32,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:32,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:00:32,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:32,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:00:32,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:00:32,685 INFO L87 Difference]: Start difference. First operand 4257 states and 5844 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:00:34,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:00:37,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:00:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:44,193 INFO L93 Difference]: Finished difference Result 13161 states and 18213 transitions. [2022-10-15 21:00:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:00:44,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2022-10-15 21:00:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:44,262 INFO L225 Difference]: With dead ends: 13161 [2022-10-15 21:00:44,262 INFO L226 Difference]: Without dead ends: 8912 [2022-10-15 21:00:44,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:44,298 INFO L413 NwaCegarLoop]: 6253 mSDtfsCounter, 7426 mSDsluCounter, 8952 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 1586 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7885 SdHoareTripleChecker+Valid, 15205 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1586 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:44,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7885 Valid, 15205 Invalid, 3775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1586 Valid, 2188 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-10-15 21:00:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8912 states. [2022-10-15 21:00:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8912 to 7790. [2022-10-15 21:00:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7790 states, 5862 states have (on average 1.5569771409075401) internal successors, (9127), 6473 states have internal predecessors, (9127), 1164 states have call successors, (1164), 180 states have call predecessors, (1164), 180 states have return successors, (1164), 1159 states have call predecessors, (1164), 1164 states have call successors, (1164) [2022-10-15 21:00:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 11455 transitions. [2022-10-15 21:00:44,842 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 11455 transitions. Word has length 49 [2022-10-15 21:00:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:44,842 INFO L495 AbstractCegarLoop]: Abstraction has 7790 states and 11455 transitions. [2022-10-15 21:00:44,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:00:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 11455 transitions. [2022-10-15 21:00:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:00:44,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:44,846 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:00:44,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:00:44,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [osst_chk_resultErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, osst_chk_resultErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 619 more)] === [2022-10-15 21:00:44,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash 908850432, now seen corresponding path program 1 times [2022-10-15 21:00:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:44,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836022841] [2022-10-15 21:00:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:00:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:00:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:00:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:45,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:45,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836022841] [2022-10-15 21:00:45,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836022841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:45,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:45,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:00:45,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447718278] [2022-10-15 21:00:45,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:45,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:00:45,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:45,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:00:45,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:45,222 INFO L87 Difference]: Start difference. First operand 7790 states and 11455 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:00:46,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:00:48,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []