/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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:47:40,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:47:40,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:47:40,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:47:40,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:47:40,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:47:40,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:47:40,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:47:40,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:47:40,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:47:40,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:47:40,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:47:40,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:47:40,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:47:40,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:47:40,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:47:40,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:47:40,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:47:40,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:47:40,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:47:40,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:47:40,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:47:40,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:47:40,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:47:40,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:47:40,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:47:40,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:47:40,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:47:40,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:47:40,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:47:40,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:47:40,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:47:40,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:47:40,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:47:40,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:47:40,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:47:40,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:47:40,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:47:40,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:47:40,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:47:40,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:47:40,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:47:40,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:47:40,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:47:40,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:47:40,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:47:40,572 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:47:40,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:47:40,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:47:40,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:47:40,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:47:40,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:47:40,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:47:40,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:47:40,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:47:40,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:47:40,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:47:40,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:47:40,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:47:40,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:47:40,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:47:40,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:47:40,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:47:40,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:47:40,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:47:40,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:47:40,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:47:40,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:47:41,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:47:41,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:47:41,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:47:41,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:47:41,106 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:47:41,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2020-12-22 16:47:41,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3279836f/ea479ff86512480aa3df6888ec4581a1/FLAG7849fb87e [2020-12-22 16:47:42,291 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:47:42,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2020-12-22 16:47:42,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3279836f/ea479ff86512480aa3df6888ec4581a1/FLAG7849fb87e [2020-12-22 16:47:42,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3279836f/ea479ff86512480aa3df6888ec4581a1 [2020-12-22 16:47:42,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:47:42,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:47:42,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:47:42,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:47:42,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:47:42,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:47:42" (1/1) ... [2020-12-22 16:47:42,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcd78a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:42, skipping insertion in model container [2020-12-22 16:47:42,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:47:42" (1/1) ... [2020-12-22 16:47:42,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:47:42,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:47:45,645 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2020-12-22 16:47:45,649 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2020-12-22 16:47:45,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:47:45,735 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:47:46,227 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2020-12-22 16:47:46,228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2020-12-22 16:47:46,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:47:46,938 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:47:46,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46 WrapperNode [2020-12-22 16:47:46,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:47:46,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:47:46,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:47:46,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:47:46,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:47,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:47,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:47:47,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:47:47,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:47:47,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:47:47,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:47,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:47,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:47,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:48,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:48,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:48,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (1/1) ... [2020-12-22 16:47:48,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:47:48,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:47:48,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:47:48,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:47:48,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (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 16:47:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 16:47:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:47:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:47:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:47:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:47:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:47:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:47:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:47:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 16:47:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:47:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:47:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:48:53,428 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:48:53,431 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 16:48:53,431 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 16:48:53,431 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:48:53,432 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:48:53,432 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:48:53,468 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:48:53,468 INFO L299 CfgBuilder]: Removed 2043 assume(true) statements. [2020-12-22 16:48:53,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:48:53 BoogieIcfgContainer [2020-12-22 16:48:53,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:48:53,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:48:53,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:48:53,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:48:53,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:47:42" (1/3) ... [2020-12-22 16:48:53,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a4962b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:48:53, skipping insertion in model container [2020-12-22 16:48:53,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:47:46" (2/3) ... [2020-12-22 16:48:53,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a4962b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:48:53, skipping insertion in model container [2020-12-22 16:48:53,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:48:53" (3/3) ... [2020-12-22 16:48:53,482 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2020-12-22 16:48:53,488 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:48:53,499 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 26 error locations. [2020-12-22 16:48:53,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2020-12-22 16:48:53,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:48:53,556 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:48:53,556 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:48:53,556 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:48:53,556 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:48:53,556 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:48:53,557 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:48:53,557 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:48:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states. [2020-12-22 16:48:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 16:48:53,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:48:53,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:48:53,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:48:53,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:48:53,643 INFO L82 PathProgramCache]: Analyzing trace with hash 949678794, now seen corresponding path program 1 times [2020-12-22 16:48:53,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:48:53,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859306035] [2020-12-22 16:48:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:48:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:48:55,046 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 16:48:55,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859306035] [2020-12-22 16:48:55,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:48:55,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:48:55,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065124903] [2020-12-22 16:48:55,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:48:55,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:48:55,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:48:55,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:48:55,076 INFO L87 Difference]: Start difference. First operand 2466 states. Second operand 3 states. [2020-12-22 16:48:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:48:57,669 INFO L93 Difference]: Finished difference Result 5701 states and 8063 transitions. [2020-12-22 16:48:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:48:57,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-12-22 16:48:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:48:57,707 INFO L225 Difference]: With dead ends: 5701 [2020-12-22 16:48:57,708 INFO L226 Difference]: Without dead ends: 3123 [2020-12-22 16:48:57,719 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 16:48:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2020-12-22 16:48:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3097. [2020-12-22 16:48:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3097 states. [2020-12-22 16:48:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4145 transitions. [2020-12-22 16:48:57,895 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4145 transitions. Word has length 93 [2020-12-22 16:48:57,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:48:57,896 INFO L481 AbstractCegarLoop]: Abstraction has 3097 states and 4145 transitions. [2020-12-22 16:48:57,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:48:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4145 transitions. [2020-12-22 16:48:57,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 16:48:57,902 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:48:57,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:48:57,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:48:57,903 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:48:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:48:57,904 INFO L82 PathProgramCache]: Analyzing trace with hash 591792664, now seen corresponding path program 1 times [2020-12-22 16:48:57,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:48:57,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232149393] [2020-12-22 16:48:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:48:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:48:58,382 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 16:48:58,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232149393] [2020-12-22 16:48:58,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:48:58,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:48:58,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99449792] [2020-12-22 16:48:58,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:48:58,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:48:58,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:48:58,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:48:58,387 INFO L87 Difference]: Start difference. First operand 3097 states and 4145 transitions. Second operand 3 states. [2020-12-22 16:49:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:00,875 INFO L93 Difference]: Finished difference Result 8685 states and 11691 transitions. [2020-12-22 16:49:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:00,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-22 16:49:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:00,911 INFO L225 Difference]: With dead ends: 8685 [2020-12-22 16:49:00,911 INFO L226 Difference]: Without dead ends: 5744 [2020-12-22 16:49:00,922 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 16:49:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2020-12-22 16:49:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5684. [2020-12-22 16:49:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5684 states. [2020-12-22 16:49:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 7675 transitions. [2020-12-22 16:49:01,127 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 7675 transitions. Word has length 99 [2020-12-22 16:49:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:01,129 INFO L481 AbstractCegarLoop]: Abstraction has 5684 states and 7675 transitions. [2020-12-22 16:49:01,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 7675 transitions. [2020-12-22 16:49:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 16:49:01,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:01,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:49:01,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:49:01,139 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:01,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:01,142 INFO L82 PathProgramCache]: Analyzing trace with hash -88800783, now seen corresponding path program 1 times [2020-12-22 16:49:01,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:01,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150239767] [2020-12-22 16:49:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:01,682 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 16:49:01,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150239767] [2020-12-22 16:49:01,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:01,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:01,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412528200] [2020-12-22 16:49:01,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:01,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:01,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:01,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:01,698 INFO L87 Difference]: Start difference. First operand 5684 states and 7675 transitions. Second operand 3 states. [2020-12-22 16:49:04,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:04,369 INFO L93 Difference]: Finished difference Result 15804 states and 21469 transitions. [2020-12-22 16:49:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:04,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-12-22 16:49:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:04,428 INFO L225 Difference]: With dead ends: 15804 [2020-12-22 16:49:04,428 INFO L226 Difference]: Without dead ends: 10276 [2020-12-22 16:49:04,440 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 16:49:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2020-12-22 16:49:04,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 10204. [2020-12-22 16:49:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10204 states. [2020-12-22 16:49:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 13885 transitions. [2020-12-22 16:49:04,826 INFO L78 Accepts]: Start accepts. Automaton has 10204 states and 13885 transitions. Word has length 108 [2020-12-22 16:49:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:04,826 INFO L481 AbstractCegarLoop]: Abstraction has 10204 states and 13885 transitions. [2020-12-22 16:49:04,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 10204 states and 13885 transitions. [2020-12-22 16:49:04,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 16:49:04,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:04,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:04,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:49:04,840 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:04,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:04,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1652114132, now seen corresponding path program 1 times [2020-12-22 16:49:04,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:04,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373334495] [2020-12-22 16:49:04,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:05,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:49:05,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373334495] [2020-12-22 16:49:05,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:05,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:05,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611605404] [2020-12-22 16:49:05,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:05,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:05,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:05,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:05,368 INFO L87 Difference]: Start difference. First operand 10204 states and 13885 transitions. Second operand 3 states. [2020-12-22 16:49:08,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:08,213 INFO L93 Difference]: Finished difference Result 30260 states and 41265 transitions. [2020-12-22 16:49:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:08,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-12-22 16:49:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:08,310 INFO L225 Difference]: With dead ends: 30260 [2020-12-22 16:49:08,310 INFO L226 Difference]: Without dead ends: 20212 [2020-12-22 16:49:08,330 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 16:49:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20212 states. [2020-12-22 16:49:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20212 to 20128. [2020-12-22 16:49:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20128 states. [2020-12-22 16:49:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 27473 transitions. [2020-12-22 16:49:08,978 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 27473 transitions. Word has length 110 [2020-12-22 16:49:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:08,980 INFO L481 AbstractCegarLoop]: Abstraction has 20128 states and 27473 transitions. [2020-12-22 16:49:08,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 27473 transitions. [2020-12-22 16:49:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-22 16:49:08,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:08,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:08,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:49:08,989 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:08,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1415452834, now seen corresponding path program 1 times [2020-12-22 16:49:08,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:08,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293611748] [2020-12-22 16:49:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:49:09,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293611748] [2020-12-22 16:49:09,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:09,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:09,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133085065] [2020-12-22 16:49:09,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:09,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:09,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:09,452 INFO L87 Difference]: Start difference. First operand 20128 states and 27473 transitions. Second operand 3 states. [2020-12-22 16:49:12,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:12,109 INFO L93 Difference]: Finished difference Result 40677 states and 55546 transitions. [2020-12-22 16:49:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:12,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-12-22 16:49:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:12,173 INFO L225 Difference]: With dead ends: 40677 [2020-12-22 16:49:12,173 INFO L226 Difference]: Without dead ends: 20705 [2020-12-22 16:49:12,210 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 16:49:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2020-12-22 16:49:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20693. [2020-12-22 16:49:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20693 states. [2020-12-22 16:49:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20693 states to 20693 states and 28236 transitions. [2020-12-22 16:49:12,789 INFO L78 Accepts]: Start accepts. Automaton has 20693 states and 28236 transitions. Word has length 113 [2020-12-22 16:49:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:12,791 INFO L481 AbstractCegarLoop]: Abstraction has 20693 states and 28236 transitions. [2020-12-22 16:49:12,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 20693 states and 28236 transitions. [2020-12-22 16:49:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 16:49:12,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:12,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:49:12,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:49:12,795 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:12,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:12,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1522816006, now seen corresponding path program 1 times [2020-12-22 16:49:12,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:12,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455447215] [2020-12-22 16:49:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:13,460 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 16:49:13,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455447215] [2020-12-22 16:49:13,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:13,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:13,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746642132] [2020-12-22 16:49:13,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:13,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:13,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:13,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:13,464 INFO L87 Difference]: Start difference. First operand 20693 states and 28236 transitions. Second operand 3 states. [2020-12-22 16:49:16,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:16,391 INFO L93 Difference]: Finished difference Result 55687 states and 76231 transitions. [2020-12-22 16:49:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:16,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-22 16:49:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:16,487 INFO L225 Difference]: With dead ends: 55687 [2020-12-22 16:49:16,487 INFO L226 Difference]: Without dead ends: 35150 [2020-12-22 16:49:16,525 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 16:49:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35150 states. [2020-12-22 16:49:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35150 to 35042. [2020-12-22 16:49:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35042 states. [2020-12-22 16:49:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35042 states to 35042 states and 47931 transitions. [2020-12-22 16:49:17,499 INFO L78 Accepts]: Start accepts. Automaton has 35042 states and 47931 transitions. Word has length 115 [2020-12-22 16:49:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:17,500 INFO L481 AbstractCegarLoop]: Abstraction has 35042 states and 47931 transitions. [2020-12-22 16:49:17,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 35042 states and 47931 transitions. [2020-12-22 16:49:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-22 16:49:17,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:17,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:49:17,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:49:17,506 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:17,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash -355735077, now seen corresponding path program 1 times [2020-12-22 16:49:17,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:17,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427932196] [2020-12-22 16:49:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:18,005 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 16:49:18,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427932196] [2020-12-22 16:49:18,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:18,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:18,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254123265] [2020-12-22 16:49:18,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:18,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:18,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:18,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:18,008 INFO L87 Difference]: Start difference. First operand 35042 states and 47931 transitions. Second operand 3 states. [2020-12-22 16:49:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:21,667 INFO L93 Difference]: Finished difference Result 99190 states and 135629 transitions. [2020-12-22 16:49:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:21,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-22 16:49:21,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:21,849 INFO L225 Difference]: With dead ends: 99190 [2020-12-22 16:49:21,850 INFO L226 Difference]: Without dead ends: 64304 [2020-12-22 16:49:21,925 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 16:49:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64304 states. [2020-12-22 16:49:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64304 to 64128. [2020-12-22 16:49:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64128 states. [2020-12-22 16:49:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64128 states to 64128 states and 87556 transitions. [2020-12-22 16:49:24,146 INFO L78 Accepts]: Start accepts. Automaton has 64128 states and 87556 transitions. Word has length 118 [2020-12-22 16:49:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:24,146 INFO L481 AbstractCegarLoop]: Abstraction has 64128 states and 87556 transitions. [2020-12-22 16:49:24,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 64128 states and 87556 transitions. [2020-12-22 16:49:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-22 16:49:24,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:24,161 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:24,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:49:24,162 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1202251336, now seen corresponding path program 1 times [2020-12-22 16:49:24,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:24,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568899256] [2020-12-22 16:49:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:49:24,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568899256] [2020-12-22 16:49:24,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:24,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:24,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392004600] [2020-12-22 16:49:24,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:24,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:24,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:24,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:24,790 INFO L87 Difference]: Start difference. First operand 64128 states and 87556 transitions. Second operand 3 states. [2020-12-22 16:49:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:29,638 INFO L93 Difference]: Finished difference Result 145352 states and 198296 transitions. [2020-12-22 16:49:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:29,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-22 16:49:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:29,837 INFO L225 Difference]: With dead ends: 145352 [2020-12-22 16:49:29,837 INFO L226 Difference]: Without dead ends: 81460 [2020-12-22 16:49:29,906 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 16:49:30,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81460 states. [2020-12-22 16:49:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81460 to 81344. [2020-12-22 16:49:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81344 states. [2020-12-22 16:49:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81344 states to 81344 states and 110580 transitions. [2020-12-22 16:49:32,231 INFO L78 Accepts]: Start accepts. Automaton has 81344 states and 110580 transitions. Word has length 145 [2020-12-22 16:49:32,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:32,232 INFO L481 AbstractCegarLoop]: Abstraction has 81344 states and 110580 transitions. [2020-12-22 16:49:32,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:32,232 INFO L276 IsEmpty]: Start isEmpty. Operand 81344 states and 110580 transitions. [2020-12-22 16:49:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-22 16:49:32,244 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:32,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:32,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:49:32,245 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:32,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1522539017, now seen corresponding path program 1 times [2020-12-22 16:49:32,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:32,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131192236] [2020-12-22 16:49:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:49:32,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131192236] [2020-12-22 16:49:32,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:32,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:32,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076913793] [2020-12-22 16:49:32,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:32,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:32,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:32,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:32,795 INFO L87 Difference]: Start difference. First operand 81344 states and 110580 transitions. Second operand 3 states. [2020-12-22 16:49:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:38,003 INFO L93 Difference]: Finished difference Result 240344 states and 327608 transitions. [2020-12-22 16:49:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:38,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-22 16:49:38,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:38,294 INFO L225 Difference]: With dead ends: 240344 [2020-12-22 16:49:38,294 INFO L226 Difference]: Without dead ends: 159236 [2020-12-22 16:49:38,392 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 16:49:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159236 states. [2020-12-22 16:49:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159236 to 159184. [2020-12-22 16:49:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159184 states. [2020-12-22 16:49:42,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159184 states to 159184 states and 216788 transitions. [2020-12-22 16:49:42,842 INFO L78 Accepts]: Start accepts. Automaton has 159184 states and 216788 transitions. Word has length 145 [2020-12-22 16:49:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:42,842 INFO L481 AbstractCegarLoop]: Abstraction has 159184 states and 216788 transitions. [2020-12-22 16:49:42,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand 159184 states and 216788 transitions. [2020-12-22 16:49:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-22 16:49:42,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:42,854 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:42,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:49:42,855 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:42,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:42,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1966439691, now seen corresponding path program 1 times [2020-12-22 16:49:42,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:42,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894531923] [2020-12-22 16:49:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:49:43,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894531923] [2020-12-22 16:49:43,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:43,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:43,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932243589] [2020-12-22 16:49:43,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:43,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:43,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:43,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:43,270 INFO L87 Difference]: Start difference. First operand 159184 states and 216788 transitions. Second operand 3 states. [2020-12-22 16:49:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:50,695 INFO L93 Difference]: Finished difference Result 396120 states and 540120 transitions. [2020-12-22 16:49:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:50,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-22 16:49:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:51,147 INFO L225 Difference]: With dead ends: 396120 [2020-12-22 16:49:51,147 INFO L226 Difference]: Without dead ends: 236109 [2020-12-22 16:49:51,304 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 16:49:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236109 states. [2020-12-22 16:49:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236109 to 236057. [2020-12-22 16:49:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236057 states. [2020-12-22 16:49:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236057 states to 236057 states and 321884 transitions. [2020-12-22 16:49:57,225 INFO L78 Accepts]: Start accepts. Automaton has 236057 states and 321884 transitions. Word has length 145 [2020-12-22 16:49:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:57,225 INFO L481 AbstractCegarLoop]: Abstraction has 236057 states and 321884 transitions. [2020-12-22 16:49:57,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 236057 states and 321884 transitions. [2020-12-22 16:49:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 16:49:57,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:57,235 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:49:57,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 16:49:57,236 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:57,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1698914040, now seen corresponding path program 1 times [2020-12-22 16:49:57,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:57,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889526441] [2020-12-22 16:49:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 16:49:58,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889526441] [2020-12-22 16:49:58,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:58,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:58,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400989325] [2020-12-22 16:49:58,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:58,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:58,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:58,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:58,080 INFO L87 Difference]: Start difference. First operand 236057 states and 321884 transitions. Second operand 3 states. [2020-12-22 16:50:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:50:06,511 INFO L93 Difference]: Finished difference Result 549290 states and 749256 transitions. [2020-12-22 16:50:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:50:06,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 16:50:06,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:50:07,203 INFO L225 Difference]: With dead ends: 549290 [2020-12-22 16:50:07,204 INFO L226 Difference]: Without dead ends: 312982 [2020-12-22 16:50:07,465 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 16:50:07,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312982 states. [2020-12-22 16:50:13,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312982 to 236057. [2020-12-22 16:50:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236057 states. [2020-12-22 16:50:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236057 states to 236057 states and 321883 transitions. [2020-12-22 16:50:14,304 INFO L78 Accepts]: Start accepts. Automaton has 236057 states and 321883 transitions. Word has length 161 [2020-12-22 16:50:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:50:14,305 INFO L481 AbstractCegarLoop]: Abstraction has 236057 states and 321883 transitions. [2020-12-22 16:50:14,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:50:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 236057 states and 321883 transitions. [2020-12-22 16:50:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 16:50:14,319 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:50:14,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:50:14,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 16:50:14,320 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:50:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:50:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1255013366, now seen corresponding path program 1 times [2020-12-22 16:50:14,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:50:14,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645433463] [2020-12-22 16:50:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:50:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:50:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 16:50:15,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645433463] [2020-12-22 16:50:15,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:50:15,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:50:15,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60918436] [2020-12-22 16:50:15,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:50:15,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:50:15,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:50:15,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:50:15,128 INFO L87 Difference]: Start difference. First operand 236057 states and 321883 transitions. Second operand 3 states. [2020-12-22 16:50:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:50:23,612 INFO L93 Difference]: Finished difference Result 549674 states and 750022 transitions. [2020-12-22 16:50:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:50:23,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 16:50:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:50:24,271 INFO L225 Difference]: With dead ends: 549674 [2020-12-22 16:50:24,271 INFO L226 Difference]: Without dead ends: 313853 [2020-12-22 16:50:24,556 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 16:50:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313853 states. [2020-12-22 16:50:34,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313853 to 313297. [2020-12-22 16:50:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313297 states. [2020-12-22 16:50:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313297 states to 313297 states and 427491 transitions. [2020-12-22 16:50:35,563 INFO L78 Accepts]: Start accepts. Automaton has 313297 states and 427491 transitions. Word has length 161 [2020-12-22 16:50:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:50:35,564 INFO L481 AbstractCegarLoop]: Abstraction has 313297 states and 427491 transitions. [2020-12-22 16:50:35,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:50:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 313297 states and 427491 transitions. [2020-12-22 16:50:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-12-22 16:50:35,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:50:35,581 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:50:35,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 16:50:35,582 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:50:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:50:35,583 INFO L82 PathProgramCache]: Analyzing trace with hash 928967200, now seen corresponding path program 1 times [2020-12-22 16:50:35,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:50:35,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086044296] [2020-12-22 16:50:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:50:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:50:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 16:50:36,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086044296] [2020-12-22 16:50:36,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:50:36,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:50:36,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343458169] [2020-12-22 16:50:36,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:50:36,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:50:36,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:50:36,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:50:36,712 INFO L87 Difference]: Start difference. First operand 313297 states and 427491 transitions. Second operand 3 states. [2020-12-22 16:50:48,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:50:48,358 INFO L93 Difference]: Finished difference Result 760942 states and 1040539 transitions. [2020-12-22 16:50:48,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:50:48,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-12-22 16:50:48,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:50:49,424 INFO L225 Difference]: With dead ends: 760942 [2020-12-22 16:50:49,425 INFO L226 Difference]: Without dead ends: 447881 [2020-12-22 16:50:49,867 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 16:50:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447881 states. [2020-12-22 16:51:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447881 to 447521. [2020-12-22 16:51:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447521 states. [2020-12-22 16:51:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447521 states to 447521 states and 611443 transitions. [2020-12-22 16:51:02,299 INFO L78 Accepts]: Start accepts. Automaton has 447521 states and 611443 transitions. Word has length 171 [2020-12-22 16:51:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:51:02,300 INFO L481 AbstractCegarLoop]: Abstraction has 447521 states and 611443 transitions. [2020-12-22 16:51:02,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:51:02,300 INFO L276 IsEmpty]: Start isEmpty. Operand 447521 states and 611443 transitions. [2020-12-22 16:51:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-22 16:51:02,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:51:02,314 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:51:02,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 16:51:02,315 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:51:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:51:02,315 INFO L82 PathProgramCache]: Analyzing trace with hash 622642319, now seen corresponding path program 1 times [2020-12-22 16:51:02,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:51:02,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879135502] [2020-12-22 16:51:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:51:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:51:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-12-22 16:51:03,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879135502] [2020-12-22 16:51:03,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:51:03,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:51:03,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516277132] [2020-12-22 16:51:03,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:51:03,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:51:03,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:51:03,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:51:03,468 INFO L87 Difference]: Start difference. First operand 447521 states and 611443 transitions. Second operand 3 states.