/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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:44:03,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:44:03,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:44:03,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:44:03,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:44:03,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:44:03,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:44:03,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:44:03,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:44:03,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:44:03,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:44:03,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:44:03,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:44:03,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:44:03,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:44:03,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:44:03,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:44:03,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:44:03,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:44:03,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:44:03,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:44:03,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:44:03,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:44:03,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:44:03,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:44:03,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:44:03,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:44:03,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:44:03,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:44:03,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:44:03,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:44:03,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:44:03,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:44:03,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:44:03,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:44:03,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:44:03,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:44:03,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:44:03,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:44:03,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:44:03,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:44:03,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:44:03,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:44:03,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:44:03,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:44:03,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:44:03,925 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:44:03,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:44:03,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:44:03,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:44:03,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:44:03,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:44:03,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:44:03,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:44:03,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:44:03,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:44:03,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:44:03,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:44:03,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:44:03,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:44:03,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:44:03,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:44:03,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:44:04,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:44:04,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:44:04,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:44:04,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:44:04,389 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:44:04,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2020-12-22 14:44:04,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7142f39c/6578f78b0e834743bc5bde033cf851fa/FLAG889581d42 [2020-12-22 14:44:05,676 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:44:05,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2020-12-22 14:44:05,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7142f39c/6578f78b0e834743bc5bde033cf851fa/FLAG889581d42 [2020-12-22 14:44:06,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7142f39c/6578f78b0e834743bc5bde033cf851fa [2020-12-22 14:44:06,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:44:06,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:44:06,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:44:06,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:44:06,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:44:06,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:06" (1/1) ... [2020-12-22 14:44:06,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f06ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:06, skipping insertion in model container [2020-12-22 14:44:06,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:06" (1/1) ... [2020-12-22 14:44:06,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:44:06,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:44:09,117 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2020-12-22 14:44:09,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:44:09,541 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:44:09,958 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2020-12-22 14:44:09,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:44:10,724 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:44:10,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10 WrapperNode [2020-12-22 14:44:10,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:44:10,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:44:10,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:44:10,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:44:10,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:10,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:12,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:44:12,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:44:12,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:44:12,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:44:12,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:12,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:13,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:13,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:14,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:14,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:14,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (1/1) ... [2020-12-22 14:44:14,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:44:14,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:44:14,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:44:14,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:44:14,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (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 14:44:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2020-12-22 14:44:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2020-12-22 14:44:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:44:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:44:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2020-12-22 14:44:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2020-12-22 14:44:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2020-12-22 14:44:15,145 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2020-12-22 14:44:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:44:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-22 14:44:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:44:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:44:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:44:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2020-12-22 14:44:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2020-12-22 14:44:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:44:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:44:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:44:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2020-12-22 14:44:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2020-12-22 14:44:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:44:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2020-12-22 14:44:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2020-12-22 14:44:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:44:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:44:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 14:44:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 14:44:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2020-12-22 14:44:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2020-12-22 14:44:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:44:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:44:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:45:50,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:45:50,500 INFO L299 CfgBuilder]: Removed 3550 assume(true) statements. [2020-12-22 14:45:50,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:45:50 BoogieIcfgContainer [2020-12-22 14:45:50,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:45:50,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:45:50,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:45:50,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:45:50,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:44:06" (1/3) ... [2020-12-22 14:45:50,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8b0942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:45:50, skipping insertion in model container [2020-12-22 14:45:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:10" (2/3) ... [2020-12-22 14:45:50,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8b0942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:45:50, skipping insertion in model container [2020-12-22 14:45:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:45:50" (3/3) ... [2020-12-22 14:45:50,533 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2020-12-22 14:45:50,544 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:45:50,555 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-22 14:45:50,579 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 14:45:50,659 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:45:50,659 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:45:50,659 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:45:50,659 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:45:50,659 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:45:50,659 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:45:50,660 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:45:50,660 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:45:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states. [2020-12-22 14:45:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-22 14:45:50,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:50,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:50,854 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1764696194, now seen corresponding path program 1 times [2020-12-22 14:45:50,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:50,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547342219] [2020-12-22 14:45:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:51,600 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 14:45:51,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547342219] [2020-12-22 14:45:51,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:51,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:45:51,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258359178] [2020-12-22 14:45:51,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:45:51,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:51,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:45:51,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:45:51,630 INFO L87 Difference]: Start difference. First operand 8951 states. Second operand 2 states. [2020-12-22 14:45:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:52,124 INFO L93 Difference]: Finished difference Result 17898 states and 27634 transitions. [2020-12-22 14:45:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:45:52,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 156 [2020-12-22 14:45:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:52,231 INFO L225 Difference]: With dead ends: 17898 [2020-12-22 14:45:52,232 INFO L226 Difference]: Without dead ends: 8942 [2020-12-22 14:45:52,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:45:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8942 states. [2020-12-22 14:45:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8942 to 8942. [2020-12-22 14:45:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8942 states. [2020-12-22 14:45:52,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 13678 transitions. [2020-12-22 14:45:52,729 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 13678 transitions. Word has length 156 [2020-12-22 14:45:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:52,729 INFO L481 AbstractCegarLoop]: Abstraction has 8942 states and 13678 transitions. [2020-12-22 14:45:52,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:45:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 13678 transitions. [2020-12-22 14:45:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-22 14:45:52,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:52,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:52,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:45:52,745 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:52,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2030406542, now seen corresponding path program 1 times [2020-12-22 14:45:52,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:52,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915800727] [2020-12-22 14:45:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:53,377 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 14:45:53,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915800727] [2020-12-22 14:45:53,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:53,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:45:53,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220938508] [2020-12-22 14:45:53,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:53,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:53,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:53,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:45:53,389 INFO L87 Difference]: Start difference. First operand 8942 states and 13678 transitions. Second operand 3 states. [2020-12-22 14:45:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:54,301 INFO L93 Difference]: Finished difference Result 26370 states and 40435 transitions. [2020-12-22 14:45:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:54,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-12-22 14:45:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:54,456 INFO L225 Difference]: With dead ends: 26370 [2020-12-22 14:45:54,456 INFO L226 Difference]: Without dead ends: 17566 [2020-12-22 14:45:54,499 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 14:45:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17566 states. [2020-12-22 14:45:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17566 to 17564. [2020-12-22 14:45:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17564 states. [2020-12-22 14:45:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17564 states to 17564 states and 26925 transitions. [2020-12-22 14:45:55,397 INFO L78 Accepts]: Start accepts. Automaton has 17564 states and 26925 transitions. Word has length 156 [2020-12-22 14:45:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:55,399 INFO L481 AbstractCegarLoop]: Abstraction has 17564 states and 26925 transitions. [2020-12-22 14:45:55,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 17564 states and 26925 transitions. [2020-12-22 14:45:55,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-12-22 14:45:55,404 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:55,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:55,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:45:55,405 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:55,406 INFO L82 PathProgramCache]: Analyzing trace with hash 961711886, now seen corresponding path program 1 times [2020-12-22 14:45:55,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:55,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892904312] [2020-12-22 14:45:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:55,721 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 14:45:55,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892904312] [2020-12-22 14:45:55,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:55,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:45:55,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119243107] [2020-12-22 14:45:55,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:55,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:55,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:55,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:45:55,725 INFO L87 Difference]: Start difference. First operand 17564 states and 26925 transitions. Second operand 3 states. [2020-12-22 14:45:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:56,256 INFO L93 Difference]: Finished difference Result 34992 states and 53681 transitions. [2020-12-22 14:45:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:56,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-12-22 14:45:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:56,333 INFO L225 Difference]: With dead ends: 34992 [2020-12-22 14:45:56,333 INFO L226 Difference]: Without dead ends: 17566 [2020-12-22 14:45:56,394 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 14:45:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17566 states. [2020-12-22 14:45:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17566 to 17565. [2020-12-22 14:45:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17565 states. [2020-12-22 14:45:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17565 states to 17565 states and 26926 transitions. [2020-12-22 14:45:57,387 INFO L78 Accepts]: Start accepts. Automaton has 17565 states and 26926 transitions. Word has length 163 [2020-12-22 14:45:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:57,389 INFO L481 AbstractCegarLoop]: Abstraction has 17565 states and 26926 transitions. [2020-12-22 14:45:57,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 17565 states and 26926 transitions. [2020-12-22 14:45:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-22 14:45:57,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:57,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:57,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:45:57,399 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:57,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1536512142, now seen corresponding path program 1 times [2020-12-22 14:45:57,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:57,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381566680] [2020-12-22 14:45:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:45:57,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381566680] [2020-12-22 14:45:57,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355323582] [2020-12-22 14:45:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:45:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:59,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:45:59,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:45:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:45:59,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:45:59,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 14:45:59,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229205940] [2020-12-22 14:45:59,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:59,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:59,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:59,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:45:59,571 INFO L87 Difference]: Start difference. First operand 17565 states and 26926 transitions. Second operand 3 states. [2020-12-22 14:45:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:59,948 INFO L93 Difference]: Finished difference Result 17565 states and 26926 transitions. [2020-12-22 14:45:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:59,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-12-22 14:45:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:00,024 INFO L225 Difference]: With dead ends: 17565 [2020-12-22 14:46:00,027 INFO L226 Difference]: Without dead ends: 17563 [2020-12-22 14:46:00,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17563 states. [2020-12-22 14:46:00,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17563 to 17563. [2020-12-22 14:46:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17563 states. [2020-12-22 14:46:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17563 states to 17563 states and 26924 transitions. [2020-12-22 14:46:00,652 INFO L78 Accepts]: Start accepts. Automaton has 17563 states and 26924 transitions. Word has length 165 [2020-12-22 14:46:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:00,652 INFO L481 AbstractCegarLoop]: Abstraction has 17563 states and 26924 transitions. [2020-12-22 14:46:00,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 17563 states and 26924 transitions. [2020-12-22 14:46:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-22 14:46:00,660 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:00,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:00,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:00,876 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:00,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:00,876 INFO L82 PathProgramCache]: Analyzing trace with hash -387196609, now seen corresponding path program 1 times [2020-12-22 14:46:00,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:00,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550768178] [2020-12-22 14:46:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:46:01,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550768178] [2020-12-22 14:46:01,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063804705] [2020-12-22 14:46:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:02,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 2646 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:46:02,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:46:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:46:02,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:46:02,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 14:46:02,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102647778] [2020-12-22 14:46:02,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:02,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:02,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:02,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:02,832 INFO L87 Difference]: Start difference. First operand 17563 states and 26924 transitions. Second operand 3 states. [2020-12-22 14:46:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:03,236 INFO L93 Difference]: Finished difference Result 17563 states and 26924 transitions. [2020-12-22 14:46:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:46:03,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-12-22 14:46:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:03,305 INFO L225 Difference]: With dead ends: 17563 [2020-12-22 14:46:03,305 INFO L226 Difference]: Without dead ends: 17561 [2020-12-22 14:46:03,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17561 states. [2020-12-22 14:46:03,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17561 to 17561. [2020-12-22 14:46:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17561 states. [2020-12-22 14:46:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17561 states to 17561 states and 26922 transitions. [2020-12-22 14:46:03,995 INFO L78 Accepts]: Start accepts. Automaton has 17561 states and 26922 transitions. Word has length 166 [2020-12-22 14:46:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:03,995 INFO L481 AbstractCegarLoop]: Abstraction has 17561 states and 26922 transitions. [2020-12-22 14:46:03,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 17561 states and 26922 transitions. [2020-12-22 14:46:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 14:46:04,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:04,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:04,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:04,220 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:04,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:04,222 INFO L82 PathProgramCache]: Analyzing trace with hash 881846556, now seen corresponding path program 1 times [2020-12-22 14:46:04,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:04,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247644591] [2020-12-22 14:46:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:46:04,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247644591] [2020-12-22 14:46:04,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669741440] [2020-12-22 14:46:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:05,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:46:05,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:46:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:46:06,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:46:06,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 14:46:06,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462301376] [2020-12-22 14:46:06,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:06,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:06,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:06,238 INFO L87 Difference]: Start difference. First operand 17561 states and 26922 transitions. Second operand 3 states. [2020-12-22 14:46:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:06,979 INFO L93 Difference]: Finished difference Result 34976 states and 53665 transitions. [2020-12-22 14:46:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:46:06,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-12-22 14:46:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:07,039 INFO L225 Difference]: With dead ends: 34976 [2020-12-22 14:46:07,040 INFO L226 Difference]: Without dead ends: 17553 [2020-12-22 14:46:07,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17553 states. [2020-12-22 14:46:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17553 to 17551. [2020-12-22 14:46:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17551 states. [2020-12-22 14:46:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17551 states to 17551 states and 26910 transitions. [2020-12-22 14:46:07,784 INFO L78 Accepts]: Start accepts. Automaton has 17551 states and 26910 transitions. Word has length 167 [2020-12-22 14:46:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:07,785 INFO L481 AbstractCegarLoop]: Abstraction has 17551 states and 26910 transitions. [2020-12-22 14:46:07,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 17551 states and 26910 transitions. [2020-12-22 14:46:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-22 14:46:07,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:07,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:08,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:08,005 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:08,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1567479017, now seen corresponding path program 1 times [2020-12-22 14:46:08,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:08,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711698623] [2020-12-22 14:46:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:46:08,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711698623] [2020-12-22 14:46:08,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074308997] [2020-12-22 14:46:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:09,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:46:09,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:46:09,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:46:09,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:46:09,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 14:46:09,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865778314] [2020-12-22 14:46:09,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:09,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:09,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:09,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:09,931 INFO L87 Difference]: Start difference. First operand 17551 states and 26910 transitions. Second operand 3 states. [2020-12-22 14:46:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:10,388 INFO L93 Difference]: Finished difference Result 17551 states and 26910 transitions. [2020-12-22 14:46:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:46:10,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-22 14:46:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:10,451 INFO L225 Difference]: With dead ends: 17551 [2020-12-22 14:46:10,452 INFO L226 Difference]: Without dead ends: 17549 [2020-12-22 14:46:10,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:10,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17549 states. [2020-12-22 14:46:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17549 to 17549. [2020-12-22 14:46:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17549 states. [2020-12-22 14:46:11,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17549 states to 17549 states and 26908 transitions. [2020-12-22 14:46:11,283 INFO L78 Accepts]: Start accepts. Automaton has 17549 states and 26908 transitions. Word has length 168 [2020-12-22 14:46:11,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:11,284 INFO L481 AbstractCegarLoop]: Abstraction has 17549 states and 26908 transitions. [2020-12-22 14:46:11,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 17549 states and 26908 transitions. [2020-12-22 14:46:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-12-22 14:46:11,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:11,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:11,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:11,507 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:11,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:11,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1347248838, now seen corresponding path program 1 times [2020-12-22 14:46:11,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:11,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867534634] [2020-12-22 14:46:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:46:11,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867534634] [2020-12-22 14:46:11,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875706989] [2020-12-22 14:46:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:13,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 2652 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:46:13,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:46:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:46:13,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:46:13,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 14:46:13,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041382722] [2020-12-22 14:46:13,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:13,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:13,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:13,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:13,310 INFO L87 Difference]: Start difference. First operand 17549 states and 26908 transitions. Second operand 3 states. [2020-12-22 14:46:13,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:13,695 INFO L93 Difference]: Finished difference Result 17549 states and 26908 transitions. [2020-12-22 14:46:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:46:13,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-12-22 14:46:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:13,762 INFO L225 Difference]: With dead ends: 17549 [2020-12-22 14:46:13,762 INFO L226 Difference]: Without dead ends: 17426 [2020-12-22 14:46:13,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17426 states. [2020-12-22 14:46:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17426 to 17426. [2020-12-22 14:46:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17426 states. [2020-12-22 14:46:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17426 states to 17426 states and 26722 transitions. [2020-12-22 14:46:14,479 INFO L78 Accepts]: Start accepts. Automaton has 17426 states and 26722 transitions. Word has length 169 [2020-12-22 14:46:14,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:14,480 INFO L481 AbstractCegarLoop]: Abstraction has 17426 states and 26722 transitions. [2020-12-22 14:46:14,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 17426 states and 26722 transitions. [2020-12-22 14:46:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-12-22 14:46:14,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:14,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:14,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:46:14,728 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:14,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:14,729 INFO L82 PathProgramCache]: Analyzing trace with hash 987383539, now seen corresponding path program 1 times [2020-12-22 14:46:14,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:14,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745242709] [2020-12-22 14:46:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:15,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-12-22 14:46:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:15,162 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 14:46:15,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745242709] [2020-12-22 14:46:15,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:46:15,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:46:15,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821552820] [2020-12-22 14:46:15,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:46:15,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:15,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:46:15,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:46:15,165 INFO L87 Difference]: Start difference. First operand 17426 states and 26722 transitions. Second operand 4 states.