/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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:30:24,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:30:24,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:30:24,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:30:24,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:30:24,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:30:24,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:30:24,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:30:24,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:30:24,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:30:24,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:30:24,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:30:24,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:30:24,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:30:24,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:30:24,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:30:24,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:30:24,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:30:24,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:30:24,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:30:24,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:30:24,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:30:24,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:30:24,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:30:24,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:30:24,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:30:24,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:30:24,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:30:24,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:30:24,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:30:24,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:30:24,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:30:24,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:30:24,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:30:24,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:30:24,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:30:24,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:30:24,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:30:24,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:30:24,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:30:24,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:30:24,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:30:24,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:30:24,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:30:24,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:30:24,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:30:24,655 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:30:24,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:30:24,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:30:24,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:30:24,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:30:24,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:30:24,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:30:24,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:30:24,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:30:24,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:30:24,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:30:24,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:30:24,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:30:24,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:30:24,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:30:24,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:30:24,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:30:24,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:30:24,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:30:24,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:30:24,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:30:24,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:30:25,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:30:25,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:30:25,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:30:25,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:30:25,105 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:30:25,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2020-12-22 15:30:25,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729cf6bc3/3c187205b6224cf9a29d96314220ba71/FLAGa7d2fea5c [2020-12-22 15:30:26,364 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:30:26,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2020-12-22 15:30:26,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729cf6bc3/3c187205b6224cf9a29d96314220ba71/FLAGa7d2fea5c [2020-12-22 15:30:26,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729cf6bc3/3c187205b6224cf9a29d96314220ba71 [2020-12-22 15:30:26,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:30:26,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:30:26,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:30:26,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:30:26,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:30:26,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:30:26" (1/1) ... [2020-12-22 15:30:26,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595f43ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:26, skipping insertion in model container [2020-12-22 15:30:26,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:30:26" (1/1) ... [2020-12-22 15:30:26,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:30:26,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:30:32,931 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2020-12-22 15:30:32,935 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2020-12-22 15:30:32,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:30:33,069 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:30:33,665 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2020-12-22 15:30:33,666 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2020-12-22 15:30:33,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:30:35,360 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:30:35,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35 WrapperNode [2020-12-22 15:30:35,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:30:35,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:30:35,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:30:35,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:30:35,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:35,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:37,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:30:37,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:30:37,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:30:37,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:30:37,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:37,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:38,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:38,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:39,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:40,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:40,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (1/1) ... [2020-12-22 15:30:41,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:30:41,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:30:41,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:30:41,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:30:41,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (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 15:30:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:30:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:30:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:30:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:30:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:30:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:30:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:30:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:30:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:30:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:32:14,312 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:32:14,313 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:32:14,314 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:32:14,315 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:32:14,318 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:32:14,320 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:32:14,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:32:14,389 INFO L299 CfgBuilder]: Removed 9450 assume(true) statements. [2020-12-22 15:32:14,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:32:14 BoogieIcfgContainer [2020-12-22 15:32:14,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:32:14,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:32:14,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:32:14,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:32:14,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:30:26" (1/3) ... [2020-12-22 15:32:14,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0221c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:32:14, skipping insertion in model container [2020-12-22 15:32:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:30:35" (2/3) ... [2020-12-22 15:32:14,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0221c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:32:14, skipping insertion in model container [2020-12-22 15:32:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:32:14" (3/3) ... [2020-12-22 15:32:14,415 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2020-12-22 15:32:14,422 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:32:14,433 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-12-22 15:32:14,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-12-22 15:32:14,511 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:32:14,512 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:32:14,512 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:32:14,512 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:32:14,512 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:32:14,512 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:32:14,512 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:32:14,513 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:32:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states. [2020-12-22 15:32:14,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 15:32:14,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:14,683 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] [2020-12-22 15:32:14,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:14,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1699671816, now seen corresponding path program 1 times [2020-12-22 15:32:14,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:14,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488331274] [2020-12-22 15:32:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:15,863 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 15:32:15,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488331274] [2020-12-22 15:32:15,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:15,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:15,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171065576] [2020-12-22 15:32:15,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:15,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:15,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:15,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:15,889 INFO L87 Difference]: Start difference. First operand 8960 states. Second operand 3 states. [2020-12-22 15:32:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:19,282 INFO L93 Difference]: Finished difference Result 24617 states and 33081 transitions. [2020-12-22 15:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:19,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-22 15:32:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:19,405 INFO L225 Difference]: With dead ends: 24617 [2020-12-22 15:32:19,405 INFO L226 Difference]: Without dead ends: 15378 [2020-12-22 15:32:19,442 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 15:32:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15378 states. [2020-12-22 15:32:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15378 to 14710. [2020-12-22 15:32:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14710 states. [2020-12-22 15:32:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14710 states to 14710 states and 19529 transitions. [2020-12-22 15:32:20,297 INFO L78 Accepts]: Start accepts. Automaton has 14710 states and 19529 transitions. Word has length 105 [2020-12-22 15:32:20,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:20,299 INFO L481 AbstractCegarLoop]: Abstraction has 14710 states and 19529 transitions. [2020-12-22 15:32:20,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:20,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14710 states and 19529 transitions. [2020-12-22 15:32:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 15:32:20,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:20,312 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] [2020-12-22 15:32:20,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:32:20,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:20,317 INFO L82 PathProgramCache]: Analyzing trace with hash -2080629326, now seen corresponding path program 1 times [2020-12-22 15:32:20,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:20,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136004375] [2020-12-22 15:32:20,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:21,168 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 15:32:21,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136004375] [2020-12-22 15:32:21,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:21,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:21,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232905907] [2020-12-22 15:32:21,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:21,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:21,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:21,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:21,177 INFO L87 Difference]: Start difference. First operand 14710 states and 19529 transitions. Second operand 3 states. [2020-12-22 15:32:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:24,219 INFO L93 Difference]: Finished difference Result 41004 states and 54414 transitions. [2020-12-22 15:32:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:24,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-12-22 15:32:24,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:24,336 INFO L225 Difference]: With dead ends: 41004 [2020-12-22 15:32:24,336 INFO L226 Difference]: Without dead ends: 26450 [2020-12-22 15:32:24,368 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 15:32:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26450 states. [2020-12-22 15:32:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26450 to 25950. [2020-12-22 15:32:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25950 states. [2020-12-22 15:32:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25950 states to 25950 states and 34459 transitions. [2020-12-22 15:32:25,224 INFO L78 Accepts]: Start accepts. Automaton has 25950 states and 34459 transitions. Word has length 110 [2020-12-22 15:32:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:25,225 INFO L481 AbstractCegarLoop]: Abstraction has 25950 states and 34459 transitions. [2020-12-22 15:32:25,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 25950 states and 34459 transitions. [2020-12-22 15:32:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 15:32:25,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:25,238 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] [2020-12-22 15:32:25,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:32:25,238 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:25,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1721395662, now seen corresponding path program 1 times [2020-12-22 15:32:25,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:25,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386009965] [2020-12-22 15:32:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:25,787 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 15:32:25,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386009965] [2020-12-22 15:32:25,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:25,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:25,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217723525] [2020-12-22 15:32:25,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:25,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:25,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:25,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:25,790 INFO L87 Difference]: Start difference. First operand 25950 states and 34459 transitions. Second operand 3 states. [2020-12-22 15:32:29,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:29,249 INFO L93 Difference]: Finished difference Result 59522 states and 79063 transitions. [2020-12-22 15:32:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:29,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-12-22 15:32:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:29,338 INFO L225 Difference]: With dead ends: 59522 [2020-12-22 15:32:29,338 INFO L226 Difference]: Without dead ends: 33728 [2020-12-22 15:32:29,383 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 15:32:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33728 states. [2020-12-22 15:32:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33728 to 33696. [2020-12-22 15:32:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33696 states. [2020-12-22 15:32:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33696 states to 33696 states and 44691 transitions. [2020-12-22 15:32:30,480 INFO L78 Accepts]: Start accepts. Automaton has 33696 states and 44691 transitions. Word has length 110 [2020-12-22 15:32:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:30,480 INFO L481 AbstractCegarLoop]: Abstraction has 33696 states and 44691 transitions. [2020-12-22 15:32:30,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 33696 states and 44691 transitions. [2020-12-22 15:32:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-12-22 15:32:30,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:30,489 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:32:30,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:32:30,490 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:30,490 INFO L82 PathProgramCache]: Analyzing trace with hash -998040944, now seen corresponding path program 1 times [2020-12-22 15:32:30,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:30,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619342996] [2020-12-22 15:32:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:32:30,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619342996] [2020-12-22 15:32:30,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:30,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:30,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542401154] [2020-12-22 15:32:30,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:30,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:30,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:30,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:30,961 INFO L87 Difference]: Start difference. First operand 33696 states and 44691 transitions. Second operand 3 states. [2020-12-22 15:32:34,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:34,566 INFO L93 Difference]: Finished difference Result 100736 states and 133683 transitions. [2020-12-22 15:32:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:34,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-12-22 15:32:34,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:34,759 INFO L225 Difference]: With dead ends: 100736 [2020-12-22 15:32:34,759 INFO L226 Difference]: Without dead ends: 67196 [2020-12-22 15:32:34,816 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 15:32:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67196 states. [2020-12-22 15:32:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67196 to 67108. [2020-12-22 15:32:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67108 states. [2020-12-22 15:32:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67108 states to 67108 states and 89075 transitions. [2020-12-22 15:32:36,899 INFO L78 Accepts]: Start accepts. Automaton has 67108 states and 89075 transitions. Word has length 125 [2020-12-22 15:32:36,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:36,900 INFO L481 AbstractCegarLoop]: Abstraction has 67108 states and 89075 transitions. [2020-12-22 15:32:36,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 67108 states and 89075 transitions. [2020-12-22 15:32:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-22 15:32:36,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:36,913 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 15:32:36,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:32:36,914 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:36,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:36,914 INFO L82 PathProgramCache]: Analyzing trace with hash 452132512, now seen corresponding path program 1 times [2020-12-22 15:32:36,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:36,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507625318] [2020-12-22 15:32:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 15:32:37,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507625318] [2020-12-22 15:32:37,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:37,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:37,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677153964] [2020-12-22 15:32:37,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:37,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:37,605 INFO L87 Difference]: Start difference. First operand 67108 states and 89075 transitions. Second operand 3 states. [2020-12-22 15:32:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:41,232 INFO L93 Difference]: Finished difference Result 134256 states and 178233 transitions. [2020-12-22 15:32:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:41,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-12-22 15:32:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:41,406 INFO L225 Difference]: With dead ends: 134256 [2020-12-22 15:32:41,406 INFO L226 Difference]: Without dead ends: 67304 [2020-12-22 15:32:41,558 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 15:32:41,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67304 states. [2020-12-22 15:32:43,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67304 to 67304. [2020-12-22 15:32:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67304 states. [2020-12-22 15:32:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67304 states to 67304 states and 89329 transitions. [2020-12-22 15:32:43,438 INFO L78 Accepts]: Start accepts. Automaton has 67304 states and 89329 transitions. Word has length 137 [2020-12-22 15:32:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:43,438 INFO L481 AbstractCegarLoop]: Abstraction has 67304 states and 89329 transitions. [2020-12-22 15:32:43,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 67304 states and 89329 transitions. [2020-12-22 15:32:43,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-22 15:32:43,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:43,449 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, 1, 1, 1, 1, 1, 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 15:32:43,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:32:43,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:43,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:43,450 INFO L82 PathProgramCache]: Analyzing trace with hash -128987353, now seen corresponding path program 1 times [2020-12-22 15:32:43,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:43,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83217813] [2020-12-22 15:32:43,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:43,859 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 15:32:43,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83217813] [2020-12-22 15:32:43,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:43,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:43,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074798299] [2020-12-22 15:32:43,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:43,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:43,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:43,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:43,862 INFO L87 Difference]: Start difference. First operand 67304 states and 89329 transitions. Second operand 3 states. [2020-12-22 15:32:48,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:48,236 INFO L93 Difference]: Finished difference Result 149752 states and 198805 transitions. [2020-12-22 15:32:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:48,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-12-22 15:32:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:48,412 INFO L225 Difference]: With dead ends: 149752 [2020-12-22 15:32:48,412 INFO L226 Difference]: Without dead ends: 82800 [2020-12-22 15:32:48,622 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 15:32:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82800 states. [2020-12-22 15:32:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82800 to 82752. [2020-12-22 15:32:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82752 states. [2020-12-22 15:32:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82752 states to 82752 states and 109753 transitions. [2020-12-22 15:32:50,819 INFO L78 Accepts]: Start accepts. Automaton has 82752 states and 109753 transitions. Word has length 142 [2020-12-22 15:32:50,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:32:50,819 INFO L481 AbstractCegarLoop]: Abstraction has 82752 states and 109753 transitions. [2020-12-22 15:32:50,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:32:50,820 INFO L276 IsEmpty]: Start isEmpty. Operand 82752 states and 109753 transitions. [2020-12-22 15:32:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-22 15:32:50,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:32:50,834 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:50,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:32:50,835 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:32:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:32:50,835 INFO L82 PathProgramCache]: Analyzing trace with hash -386897136, now seen corresponding path program 1 times [2020-12-22 15:32:50,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:32:50,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536695903] [2020-12-22 15:32:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:32:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:32:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 15:32:51,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536695903] [2020-12-22 15:32:51,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:32:51,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:32:51,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934039686] [2020-12-22 15:32:51,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:32:51,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:32:51,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:32:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:32:51,198 INFO L87 Difference]: Start difference. First operand 82752 states and 109753 transitions. Second operand 3 states. [2020-12-22 15:32:57,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:32:57,179 INFO L93 Difference]: Finished difference Result 246816 states and 327569 transitions. [2020-12-22 15:32:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:32:57,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-12-22 15:32:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:32:57,541 INFO L225 Difference]: With dead ends: 246816 [2020-12-22 15:32:57,542 INFO L226 Difference]: Without dead ends: 164416 [2020-12-22 15:32:57,690 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 15:32:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164416 states. [2020-12-22 15:33:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164416 to 164376. [2020-12-22 15:33:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164376 states. [2020-12-22 15:33:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164376 states to 164376 states and 218153 transitions. [2020-12-22 15:33:01,995 INFO L78 Accepts]: Start accepts. Automaton has 164376 states and 218153 transitions. Word has length 166 [2020-12-22 15:33:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:33:01,996 INFO L481 AbstractCegarLoop]: Abstraction has 164376 states and 218153 transitions. [2020-12-22 15:33:01,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:33:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 164376 states and 218153 transitions. [2020-12-22 15:33:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-22 15:33:02,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:33:02,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:02,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:33:02,037 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:33:02,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:33:02,037 INFO L82 PathProgramCache]: Analyzing trace with hash -359831534, now seen corresponding path program 1 times [2020-12-22 15:33:02,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:33:02,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42593207] [2020-12-22 15:33:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:33:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:33:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 15:33:02,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42593207] [2020-12-22 15:33:02,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:33:02,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:33:02,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617723057] [2020-12-22 15:33:02,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:33:02,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:33:02,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:33:02,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:33:02,406 INFO L87 Difference]: Start difference. First operand 164376 states and 218153 transitions. Second operand 3 states. [2020-12-22 15:33:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:33:09,880 INFO L93 Difference]: Finished difference Result 410088 states and 544393 transitions. [2020-12-22 15:33:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:33:09,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-12-22 15:33:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:33:10,418 INFO L225 Difference]: With dead ends: 410088 [2020-12-22 15:33:10,419 INFO L226 Difference]: Without dead ends: 244922 [2020-12-22 15:33:10,694 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 15:33:10,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244922 states. [2020-12-22 15:33:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244922 to 244882. [2020-12-22 15:33:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244882 states. [2020-12-22 15:33:16,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244882 states to 244882 states and 325073 transitions. [2020-12-22 15:33:16,977 INFO L78 Accepts]: Start accepts. Automaton has 244882 states and 325073 transitions. Word has length 166 [2020-12-22 15:33:16,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:33:16,978 INFO L481 AbstractCegarLoop]: Abstraction has 244882 states and 325073 transitions. [2020-12-22 15:33:16,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:33:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 244882 states and 325073 transitions. [2020-12-22 15:33:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 15:33:16,994 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:33:16,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:16,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:33:16,995 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:33:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:33:16,995 INFO L82 PathProgramCache]: Analyzing trace with hash -611893135, now seen corresponding path program 1 times [2020-12-22 15:33:16,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:33:16,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680885515] [2020-12-22 15:33:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:33:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:33:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:33:17,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680885515] [2020-12-22 15:33:17,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:33:17,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:33:17,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081809674] [2020-12-22 15:33:17,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:33:17,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:33:17,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:33:17,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:33:17,432 INFO L87 Difference]: Start difference. First operand 244882 states and 325073 transitions. Second operand 3 states. [2020-12-22 15:33:26,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:33:26,062 INFO L93 Difference]: Finished difference Result 535172 states and 710492 transitions. [2020-12-22 15:33:26,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:33:26,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-22 15:33:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:33:26,702 INFO L225 Difference]: With dead ends: 535172 [2020-12-22 15:33:26,702 INFO L226 Difference]: Without dead ends: 289676 [2020-12-22 15:33:27,073 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 15:33:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289676 states. [2020-12-22 15:33:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289676 to 288819. [2020-12-22 15:33:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288819 states. [2020-12-22 15:33:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288819 states to 288819 states and 383142 transitions. [2020-12-22 15:33:36,563 INFO L78 Accepts]: Start accepts. Automaton has 288819 states and 383142 transitions. Word has length 179 [2020-12-22 15:33:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:33:36,564 INFO L481 AbstractCegarLoop]: Abstraction has 288819 states and 383142 transitions. [2020-12-22 15:33:36,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:33:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 288819 states and 383142 transitions. [2020-12-22 15:33:36,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 15:33:36,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:33:36,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:36,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:33:36,606 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:33:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:33:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1092973393, now seen corresponding path program 1 times [2020-12-22 15:33:36,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:33:36,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301031042] [2020-12-22 15:33:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:33:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:33:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 15:33:37,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301031042] [2020-12-22 15:33:37,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:33:37,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:33:37,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267286040] [2020-12-22 15:33:37,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:33:37,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:33:37,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:33:37,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:33:37,690 INFO L87 Difference]: Start difference. First operand 288819 states and 383142 transitions. Second operand 5 states.