/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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:05:22,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:05:22,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:05:22,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:05:22,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:05:22,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:05:22,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:05:22,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:05:22,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:05:22,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:05:22,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:05:22,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:05:22,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:05:22,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:05:22,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:05:22,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:05:22,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:05:22,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:05:22,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:05:22,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:05:22,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:05:22,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:05:22,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:05:22,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:05:22,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:05:22,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:05:22,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:05:22,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:05:22,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:05:22,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:05:22,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:05:22,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:05:22,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:05:22,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:05:22,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:05:22,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:05:22,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:05:22,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:05:22,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:05:22,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:05:22,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:05:22,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:05:22,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:05:22,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:05:22,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:05:22,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:05:22,704 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:05:22,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:05:22,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:05:22,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:05:22,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:05:22,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:05:22,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:05:22,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:05:22,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:05:22,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:05:22,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:05:22,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:05:22,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:05:22,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:05:22,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:05:22,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:05:22,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:05:22,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:05:22,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:05:22,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:05:22,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:05:22,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:05:23,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:05:23,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:05:23,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:05:23,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:05:23,138 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:05:23,139 INFO L432 ainManager$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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2020-12-22 16:05:23,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2402ba1e7/043ed029d0934bc29a738a5906767b16/FLAG37b935013 [2020-12-22 16:05:24,495 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:05:24,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2020-12-22 16:05:24,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2402ba1e7/043ed029d0934bc29a738a5906767b16/FLAG37b935013 [2020-12-22 16:05:24,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2402ba1e7/043ed029d0934bc29a738a5906767b16 [2020-12-22 16:05:24,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:05:24,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:05:24,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:05:24,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:05:24,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:05:24,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:05:24" (1/1) ... [2020-12-22 16:05:24,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e19450e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:24, skipping insertion in model container [2020-12-22 16:05:24,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:05:24" (1/1) ... [2020-12-22 16:05:24,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:05:24,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:05:28,128 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2020-12-22 16:05:28,142 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2020-12-22 16:05:28,143 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2020-12-22 16:05:28,144 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2020-12-22 16:05:28,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:05:28,199 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:05:28,789 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2020-12-22 16:05:28,790 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2020-12-22 16:05:28,791 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2020-12-22 16:05:28,791 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-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2020-12-22 16:05:28,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:05:29,585 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:05:29,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29 WrapperNode [2020-12-22 16:05:29,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:05:29,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:05:29,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:05:29,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:05:29,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:29,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:37,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:05:37,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:05:37,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:05:37,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:05:37,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:37,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:38,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:38,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:40,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:41,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:42,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (1/1) ... [2020-12-22 16:05:43,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:05:43,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:05:43,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:05:43,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:05:43,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (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 16:05:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:05:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:05:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:05:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:05:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:05:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:05:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:05:43,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:05:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:05:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:05:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:05:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:05:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:05:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:05:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:07:30,949 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 16:07:30,950 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:07:30,950 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:07:30,954 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:07:31,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:07:31,132 INFO L299 CfgBuilder]: Removed 28753 assume(true) statements. [2020-12-22 16:07:31,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:07:31 BoogieIcfgContainer [2020-12-22 16:07:31,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:07:31,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:07:31,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:07:31,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:07:31,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:05:24" (1/3) ... [2020-12-22 16:07:31,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cc8979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:07:31, skipping insertion in model container [2020-12-22 16:07:31,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:05:29" (2/3) ... [2020-12-22 16:07:31,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cc8979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:07:31, skipping insertion in model container [2020-12-22 16:07:31,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:07:31" (3/3) ... [2020-12-22 16:07:31,165 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2020-12-22 16:07:31,172 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:07:31,184 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 34 error locations. [2020-12-22 16:07:31,206 INFO L253 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2020-12-22 16:07:31,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:07:31,322 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:07:31,322 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:07:31,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:07:31,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:07:31,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:07:31,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:07:31,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:07:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 22069 states. [2020-12-22 16:07:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 16:07:31,588 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:07:31,589 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] [2020-12-22 16:07:31,590 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:07:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:07:31,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1663244342, now seen corresponding path program 1 times [2020-12-22 16:07:31,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:07:31,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483198885] [2020-12-22 16:07:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:07:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:07:32,432 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 16:07:32,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483198885] [2020-12-22 16:07:32,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:07:32,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:07:32,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838910688] [2020-12-22 16:07:32,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:07:32,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:07:32,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:07:32,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:07:32,460 INFO L87 Difference]: Start difference. First operand 22069 states. Second operand 3 states. [2020-12-22 16:07:37,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:07:37,231 INFO L93 Difference]: Finished difference Result 65938 states and 90016 transitions. [2020-12-22 16:07:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:07:37,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-22 16:07:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:07:37,530 INFO L225 Difference]: With dead ends: 65938 [2020-12-22 16:07:37,530 INFO L226 Difference]: Without dead ends: 43704 [2020-12-22 16:07:37,602 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 16:07:37,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43704 states. [2020-12-22 16:07:39,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43704 to 43692. [2020-12-22 16:07:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43692 states. [2020-12-22 16:07:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43692 states to 43692 states and 59463 transitions. [2020-12-22 16:07:39,537 INFO L78 Accepts]: Start accepts. Automaton has 43692 states and 59463 transitions. Word has length 30 [2020-12-22 16:07:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:07:39,539 INFO L481 AbstractCegarLoop]: Abstraction has 43692 states and 59463 transitions. [2020-12-22 16:07:39,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:07:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 43692 states and 59463 transitions. [2020-12-22 16:07:39,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 16:07:39,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:07:39,543 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] [2020-12-22 16:07:39,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:07:39,545 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:07:39,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:07:39,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1234824287, now seen corresponding path program 1 times [2020-12-22 16:07:39,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:07:39,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092583700] [2020-12-22 16:07:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:07:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:07:39,897 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 16:07:39,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092583700] [2020-12-22 16:07:39,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:07:39,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:07:39,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277686153] [2020-12-22 16:07:39,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:07:39,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:07:39,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:07:39,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:07:39,903 INFO L87 Difference]: Start difference. First operand 43692 states and 59463 transitions. Second operand 3 states. [2020-12-22 16:07:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:07:44,736 INFO L93 Difference]: Finished difference Result 107102 states and 145619 transitions. [2020-12-22 16:07:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:07:44,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 16:07:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:07:44,948 INFO L225 Difference]: With dead ends: 107102 [2020-12-22 16:07:44,948 INFO L226 Difference]: Without dead ends: 63454 [2020-12-22 16:07:45,073 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 16:07:45,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63454 states. [2020-12-22 16:07:47,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63454 to 62754. [2020-12-22 16:07:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62754 states. [2020-12-22 16:07:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62754 states to 62754 states and 85310 transitions. [2020-12-22 16:07:47,487 INFO L78 Accepts]: Start accepts. Automaton has 62754 states and 85310 transitions. Word has length 31 [2020-12-22 16:07:47,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:07:47,488 INFO L481 AbstractCegarLoop]: Abstraction has 62754 states and 85310 transitions. [2020-12-22 16:07:47,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:07:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 62754 states and 85310 transitions. [2020-12-22 16:07:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 16:07:47,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:07:47,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:07:47,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:07:47,499 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:07:47,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:07:47,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1128421566, now seen corresponding path program 1 times [2020-12-22 16:07:47,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:07:47,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581244496] [2020-12-22 16:07:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:07:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:07:47,827 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 16:07:47,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581244496] [2020-12-22 16:07:47,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:07:47,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:07:47,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850216808] [2020-12-22 16:07:47,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:07:47,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:07:47,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:07:47,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:07:47,841 INFO L87 Difference]: Start difference. First operand 62754 states and 85310 transitions. Second operand 3 states. [2020-12-22 16:07:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:07:52,654 INFO L93 Difference]: Finished difference Result 170594 states and 231892 transitions. [2020-12-22 16:07:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:07:52,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-12-22 16:07:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:07:53,045 INFO L225 Difference]: With dead ends: 170594 [2020-12-22 16:07:53,045 INFO L226 Difference]: Without dead ends: 107884 [2020-12-22 16:07:53,235 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 16:07:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107884 states. [2020-12-22 16:07:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107884 to 107320. [2020-12-22 16:07:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107320 states. [2020-12-22 16:07:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107320 states to 107320 states and 145914 transitions. [2020-12-22 16:07:57,287 INFO L78 Accepts]: Start accepts. Automaton has 107320 states and 145914 transitions. Word has length 36 [2020-12-22 16:07:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:07:57,288 INFO L481 AbstractCegarLoop]: Abstraction has 107320 states and 145914 transitions. [2020-12-22 16:07:57,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:07:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 107320 states and 145914 transitions. [2020-12-22 16:07:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 16:07:57,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:07:57,291 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] [2020-12-22 16:07:57,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:07:57,291 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:07:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:07:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash -527361994, now seen corresponding path program 1 times [2020-12-22 16:07:57,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:07:57,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562928656] [2020-12-22 16:07:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:07:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:07:57,551 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 16:07:57,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562928656] [2020-12-22 16:07:57,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:07:57,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:07:57,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006003737] [2020-12-22 16:07:57,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:07:57,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:07:57,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:07:57,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:07:57,555 INFO L87 Difference]: Start difference. First operand 107320 states and 145914 transitions. Second operand 3 states. [2020-12-22 16:08:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:03,382 INFO L93 Difference]: Finished difference Result 259718 states and 353068 transitions. [2020-12-22 16:08:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:08:03,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 16:08:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:03,720 INFO L225 Difference]: With dead ends: 259718 [2020-12-22 16:08:03,720 INFO L226 Difference]: Without dead ends: 152442 [2020-12-22 16:08:04,006 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 16:08:04,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152442 states. [2020-12-22 16:08:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152442 to 151878. [2020-12-22 16:08:08,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151878 states. [2020-12-22 16:08:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151878 states to 151878 states and 206498 transitions. [2020-12-22 16:08:08,593 INFO L78 Accepts]: Start accepts. Automaton has 151878 states and 206498 transitions. Word has length 51 [2020-12-22 16:08:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:08,593 INFO L481 AbstractCegarLoop]: Abstraction has 151878 states and 206498 transitions. [2020-12-22 16:08:08,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:08:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 151878 states and 206498 transitions. [2020-12-22 16:08:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 16:08:08,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:08,597 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:08:08,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:08:08,598 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:08,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:08,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1866639490, now seen corresponding path program 1 times [2020-12-22 16:08:08,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:08,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841882296] [2020-12-22 16:08:08,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:08:08,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841882296] [2020-12-22 16:08:08,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:08,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:08,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999317404] [2020-12-22 16:08:08,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:08:08,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:08,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:08:08,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:08,888 INFO L87 Difference]: Start difference. First operand 151878 states and 206498 transitions. Second operand 3 states. [2020-12-22 16:08:15,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:15,219 INFO L93 Difference]: Finished difference Result 303712 states and 412947 transitions. [2020-12-22 16:08:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:08:15,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-12-22 16:08:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:15,676 INFO L225 Difference]: With dead ends: 303712 [2020-12-22 16:08:15,676 INFO L226 Difference]: Without dead ends: 227649 [2020-12-22 16:08:15,856 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 16:08:16,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227649 states. [2020-12-22 16:08:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227649 to 227627. [2020-12-22 16:08:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227627 states. [2020-12-22 16:08:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227627 states to 227627 states and 309537 transitions. [2020-12-22 16:08:21,617 INFO L78 Accepts]: Start accepts. Automaton has 227627 states and 309537 transitions. Word has length 58 [2020-12-22 16:08:21,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:21,617 INFO L481 AbstractCegarLoop]: Abstraction has 227627 states and 309537 transitions. [2020-12-22 16:08:21,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:08:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 227627 states and 309537 transitions. [2020-12-22 16:08:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 16:08:21,622 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:21,622 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:08:21,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:08:21,632 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:21,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:21,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2124804928, now seen corresponding path program 1 times [2020-12-22 16:08:21,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:21,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272900168] [2020-12-22 16:08:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:21,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272900168] [2020-12-22 16:08:21,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:21,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:21,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949312960] [2020-12-22 16:08:21,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:21,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:21,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:21,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:21,966 INFO L87 Difference]: Start difference. First operand 227627 states and 309537 transitions. Second operand 4 states. [2020-12-22 16:08:27,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:27,071 INFO L93 Difference]: Finished difference Result 227627 states and 309537 transitions. [2020-12-22 16:08:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:27,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-12-22 16:08:27,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:27,507 INFO L225 Difference]: With dead ends: 227627 [2020-12-22 16:08:27,507 INFO L226 Difference]: Without dead ends: 227623 [2020-12-22 16:08:27,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:08:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227623 states. [2020-12-22 16:08:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227623 to 227623. [2020-12-22 16:08:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227623 states. [2020-12-22 16:08:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227623 states to 227623 states and 309533 transitions. [2020-12-22 16:08:34,655 INFO L78 Accepts]: Start accepts. Automaton has 227623 states and 309533 transitions. Word has length 58 [2020-12-22 16:08:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:34,658 INFO L481 AbstractCegarLoop]: Abstraction has 227623 states and 309533 transitions. [2020-12-22 16:08:34,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:08:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 227623 states and 309533 transitions. [2020-12-22 16:08:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 16:08:34,662 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:34,662 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:08:34,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:08:34,662 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.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:34,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:34,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1828207587, now seen corresponding path program 1 times [2020-12-22 16:08:34,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:34,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583858288] [2020-12-22 16:08:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:35,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583858288] [2020-12-22 16:08:35,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:35,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:35,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401838264] [2020-12-22 16:08:35,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:35,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:35,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:35,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:35,231 INFO L87 Difference]: Start difference. First operand 227623 states and 309533 transitions. Second operand 4 states. [2020-12-22 16:08:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:42,934 INFO L93 Difference]: Finished difference Result 227623 states and 309533 transitions. [2020-12-22 16:08:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:42,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-12-22 16:08:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted.