/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:44:44,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:44:44,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:44:44,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:44:44,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:44:44,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:44:44,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:44:44,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:44:44,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:44:44,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:44:44,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:44:44,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:44:44,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:44:44,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:44:44,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:44:44,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:44:44,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:44:44,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:44:44,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:44:44,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:44:44,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:44:44,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:44:44,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:44:44,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:44:44,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:44:44,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:44:44,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:44:44,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:44:44,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:44:44,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:44:44,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:44:44,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:44:44,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:44:44,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:44:44,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:44:44,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:44:44,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:44:44,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:44:44,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:44:44,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:44:44,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:44:44,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:44:44,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:44:44,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:44:44,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:44:44,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:44:44,464 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:44:44,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:44:44,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:44:44,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:44:44,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:44:44,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:44:44,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:44:44,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:44:44,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:44:44,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:44:44,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:44:44,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:44:44,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:44:44,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:44:44,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:44:44,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:44:44,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:44:44,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:44:44,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:44:44,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:44:44,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:44:44,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:44:44,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:44:44,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:44:44,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:44:44,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:44:44,926 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:44:44,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 13:44:45,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81945f44/152e1d4257f1451b92785442e02ef0f4/FLAG09c6152f5 [2020-12-22 13:44:46,018 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:44:46,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 13:44:46,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81945f44/152e1d4257f1451b92785442e02ef0f4/FLAG09c6152f5 [2020-12-22 13:44:46,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81945f44/152e1d4257f1451b92785442e02ef0f4 [2020-12-22 13:44:46,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:44:46,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:44:46,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:44:46,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:44:46,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:44:46,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:44:46" (1/1) ... [2020-12-22 13:44:46,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632ba3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:46, skipping insertion in model container [2020-12-22 13:44:46,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:44:46" (1/1) ... [2020-12-22 13:44:46,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:44:46,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:44:47,736 WARN L226 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-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2020-12-22 13:44:48,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:44:48,399 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:44:48,735 WARN L226 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-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2020-12-22 13:44:49,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:44:49,413 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:44:49,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49 WrapperNode [2020-12-22 13:44:49,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:44:49,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:44:49,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:44:49,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:44:49,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:49,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:51,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:44:51,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:44:51,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:44:51,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:44:51,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:51,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:51,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:51,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:52,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:53,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:53,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... [2020-12-22 13:44:53,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:44:53,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:44:53,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:44:53,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:44:53,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:44:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 13:44:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:44:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:44:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:44:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:44:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:44:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:44:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:48:45,986 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:48:45,987 INFO L299 CfgBuilder]: Removed 8359 assume(true) statements. [2020-12-22 13:48:45,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:48:45 BoogieIcfgContainer [2020-12-22 13:48:45,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:48:46,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:48:46,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:48:46,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:48:46,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:44:46" (1/3) ... [2020-12-22 13:48:46,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405cc994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:48:46, skipping insertion in model container [2020-12-22 13:48:46,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:44:49" (2/3) ... [2020-12-22 13:48:46,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405cc994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:48:46, skipping insertion in model container [2020-12-22 13:48:46,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:48:45" (3/3) ... [2020-12-22 13:48:46,009 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 13:48:46,017 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:48:46,026 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-12-22 13:48:46,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-12-22 13:48:46,114 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:48:46,115 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:48:46,115 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:48:46,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:48:46,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:48:46,115 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:48:46,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:48:46,116 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:48:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10332 states. [2020-12-22 13:48:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 13:48:46,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:46,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:48:46,271 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:46,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1946913747, now seen corresponding path program 1 times [2020-12-22 13:48:46,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:46,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231251817] [2020-12-22 13:48:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:48:47,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231251817] [2020-12-22 13:48:47,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:47,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:48:47,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17756055] [2020-12-22 13:48:47,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:47,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:47,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:47,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:47,458 INFO L87 Difference]: Start difference. First operand 10332 states. Second operand 3 states. [2020-12-22 13:48:50,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:50,364 INFO L93 Difference]: Finished difference Result 24000 states and 35614 transitions. [2020-12-22 13:48:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:50,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-22 13:48:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:50,484 INFO L225 Difference]: With dead ends: 24000 [2020-12-22 13:48:50,485 INFO L226 Difference]: Without dead ends: 13659 [2020-12-22 13:48:50,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13659 states. [2020-12-22 13:48:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 13659. [2020-12-22 13:48:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13659 states. [2020-12-22 13:48:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13659 states to 13659 states and 19440 transitions. [2020-12-22 13:48:51,097 INFO L78 Accepts]: Start accepts. Automaton has 13659 states and 19440 transitions. Word has length 21 [2020-12-22 13:48:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:51,098 INFO L481 AbstractCegarLoop]: Abstraction has 13659 states and 19440 transitions. [2020-12-22 13:48:51,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 13659 states and 19440 transitions. [2020-12-22 13:48:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 13:48:51,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:51,116 INFO L422 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] [2020-12-22 13:48:51,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:48:51,119 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:51,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1496146930, now seen corresponding path program 1 times [2020-12-22 13:48:51,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:51,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379064254] [2020-12-22 13:48:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:48:52,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379064254] [2020-12-22 13:48:52,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:52,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:48:52,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124663719] [2020-12-22 13:48:52,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:48:52,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:52,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:48:52,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:48:52,263 INFO L87 Difference]: Start difference. First operand 13659 states and 19440 transitions. Second operand 6 states. [2020-12-22 13:48:55,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:55,937 INFO L93 Difference]: Finished difference Result 108904 states and 155077 transitions. [2020-12-22 13:48:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 13:48:55,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-12-22 13:48:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:56,338 INFO L225 Difference]: With dead ends: 108904 [2020-12-22 13:48:56,339 INFO L226 Difference]: Without dead ends: 95273 [2020-12-22 13:48:56,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-12-22 13:48:56,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95273 states. [2020-12-22 13:48:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95273 to 13662. [2020-12-22 13:48:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13662 states. [2020-12-22 13:48:57,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13662 states to 13662 states and 19443 transitions. [2020-12-22 13:48:57,544 INFO L78 Accepts]: Start accepts. Automaton has 13662 states and 19443 transitions. Word has length 36 [2020-12-22 13:48:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:57,545 INFO L481 AbstractCegarLoop]: Abstraction has 13662 states and 19443 transitions. [2020-12-22 13:48:57,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:48:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 13662 states and 19443 transitions. [2020-12-22 13:48:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 13:48:57,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:57,549 INFO L422 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] [2020-12-22 13:48:57,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:48:57,550 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -2118761996, now seen corresponding path program 1 times [2020-12-22 13:48:57,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:57,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979108245] [2020-12-22 13:48:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat