/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--scsi--st.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:39:08,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:39:08,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:39:08,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:39:08,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:39:08,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:39:08,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:39:08,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:39:08,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:39:08,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:39:08,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:39:08,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:39:08,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:39:08,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:39:08,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:39:08,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:39:08,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:39:08,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:39:08,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:39:08,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:39:08,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:39:08,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:39:08,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:39:08,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:39:08,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:39:08,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:39:08,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:39:08,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:39:08,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:39:08,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:39:08,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:39:08,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:39:08,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:39:08,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:39:08,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:39:08,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:39:08,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:39:08,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:39:08,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:39:08,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:39:08,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:39:08,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:39:08,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:39:08,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:39:08,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:39:08,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:39:08,816 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:39:08,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:39:08,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:39:08,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:39:08,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:39:08,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:39:08,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:39:08,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:39:08,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:39:08,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:39:08,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:39:08,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:39:08,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:39:08,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:39:08,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:39:08,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:39:08,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:39:08,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:39:08,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:39:08,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:39:08,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:39:08,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:39:09,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:39:09,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:39:09,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:39:09,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:39:09,280 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:39:09,281 INFO L432 ainManager$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--scsi--st.ko-entry_point.cil.out.i [2020-12-22 14:39:09,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579d45d5c/00cce4fb1097454bb4c14e79edad688e/FLAG42ef5f39b [2020-12-22 14:39:10,697 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:39:10,698 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--scsi--st.ko-entry_point.cil.out.i [2020-12-22 14:39:10,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579d45d5c/00cce4fb1097454bb4c14e79edad688e/FLAG42ef5f39b [2020-12-22 14:39:10,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579d45d5c/00cce4fb1097454bb4c14e79edad688e [2020-12-22 14:39:10,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:39:10,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:39:10,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:39:10,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:39:11,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:39:11,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:39:10" (1/1) ... [2020-12-22 14:39:11,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6549c0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:11, skipping insertion in model container [2020-12-22 14:39:11,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:39:10" (1/1) ... [2020-12-22 14:39:11,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:39:11,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:39:14,260 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--scsi--st.ko-entry_point.cil.out.i[348142,348155] [2020-12-22 14:39:14,585 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 14:39:14,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:39:14,656 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:39:15,370 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--scsi--st.ko-entry_point.cil.out.i[348142,348155] [2020-12-22 14:39:15,386 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 14:39:15,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:39:16,048 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:39:16,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16 WrapperNode [2020-12-22 14:39:16,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:39:16,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:39:16,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:39:16,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:39:16,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:16,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:20,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:39:20,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:39:20,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:39:20,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:39:20,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:20,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:21,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:21,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:23,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:24,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:24,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (1/1) ... [2020-12-22 14:39:24,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:39:24,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:39:24,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:39:24,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:39:24,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (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 14:39:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 14:39:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:39:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:39:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2020-12-22 14:39:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2020-12-22 14:39:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:39:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:39:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2020-12-22 14:39:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 14:39:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:39:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:39:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:39:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:39:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:39:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2020-12-22 14:39:25,106 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:39:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:39:25,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:42:03,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:42:03,190 INFO L299 CfgBuilder]: Removed 13696 assume(true) statements. [2020-12-22 14:42:03,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:03 BoogieIcfgContainer [2020-12-22 14:42:03,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:42:03,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:42:03,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:42:03,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:42:03,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:39:10" (1/3) ... [2020-12-22 14:42:03,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9ca7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:03, skipping insertion in model container [2020-12-22 14:42:03,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:16" (2/3) ... [2020-12-22 14:42:03,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9ca7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:03, skipping insertion in model container [2020-12-22 14:42:03,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:03" (3/3) ... [2020-12-22 14:42:03,218 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i [2020-12-22 14:42:03,225 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:42:03,235 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2020-12-22 14:42:03,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2020-12-22 14:42:03,339 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:42:03,340 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:42:03,340 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:42:03,340 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:42:03,340 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:42:03,340 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:42:03,340 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:42:03,341 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:42:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 17881 states. [2020-12-22 14:42:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-12-22 14:42:03,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:03,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:03,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:03,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1493201757, now seen corresponding path program 1 times [2020-12-22 14:42:03,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:03,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187358213] [2020-12-22 14:42:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:05,504 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 14:42:05,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187358213] [2020-12-22 14:42:05,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:05,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:42:05,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559003006] [2020-12-22 14:42:05,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:42:05,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:05,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:42:05,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:42:05,542 INFO L87 Difference]: Start difference. First operand 17881 states. Second operand 2 states. [2020-12-22 14:42:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:06,411 INFO L93 Difference]: Finished difference Result 35758 states and 52079 transitions. [2020-12-22 14:42:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:42:06,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 273 [2020-12-22 14:42:06,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:06,541 INFO L225 Difference]: With dead ends: 35758 [2020-12-22 14:42:06,541 INFO L226 Difference]: Without dead ends: 17854 [2020-12-22 14:42:06,605 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 14:42:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17854 states. [2020-12-22 14:42:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17854 to 17854. [2020-12-22 14:42:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17854 states. [2020-12-22 14:42:07,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17854 states to 17854 states and 25363 transitions. [2020-12-22 14:42:07,466 INFO L78 Accepts]: Start accepts. Automaton has 17854 states and 25363 transitions. Word has length 273 [2020-12-22 14:42:07,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:07,468 INFO L481 AbstractCegarLoop]: Abstraction has 17854 states and 25363 transitions. [2020-12-22 14:42:07,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:42:07,468 INFO L276 IsEmpty]: Start isEmpty. Operand 17854 states and 25363 transitions. [2020-12-22 14:42:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-12-22 14:42:07,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:07,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:07,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:42:07,481 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:07,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1012733375, now seen corresponding path program 1 times [2020-12-22 14:42:07,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:07,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206543708] [2020-12-22 14:42:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:08,957 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 14:42:08,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206543708] [2020-12-22 14:42:08,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:08,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:42:08,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022940767] [2020-12-22 14:42:08,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:42:08,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:08,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:42:08,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:42:08,965 INFO L87 Difference]: Start difference. First operand 17854 states and 25363 transitions. Second operand 3 states. [2020-12-22 14:42:10,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:10,707 INFO L93 Difference]: Finished difference Result 52778 states and 75213 transitions. [2020-12-22 14:42:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:42:10,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-12-22 14:42:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:10,868 INFO L225 Difference]: With dead ends: 52778 [2020-12-22 14:42:10,868 INFO L226 Difference]: Without dead ends: 35183 [2020-12-22 14:42:10,919 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 14:42:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35183 states. [2020-12-22 14:42:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35183 to 35117. [2020-12-22 14:42:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35117 states. [2020-12-22 14:42:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35117 states to 35117 states and 50068 transitions. [2020-12-22 14:42:12,248 INFO L78 Accepts]: Start accepts. Automaton has 35117 states and 50068 transitions. Word has length 273 [2020-12-22 14:42:12,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:12,250 INFO L481 AbstractCegarLoop]: Abstraction has 35117 states and 50068 transitions. [2020-12-22 14:42:12,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:42:12,250 INFO L276 IsEmpty]: Start isEmpty. Operand 35117 states and 50068 transitions. [2020-12-22 14:42:12,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-12-22 14:42:12,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:12,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:12,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:42:12,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1622131443, now seen corresponding path program 1 times [2020-12-22 14:42:12,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:12,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022663992] [2020-12-22 14:42:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:13,549 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 14:42:13,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022663992] [2020-12-22 14:42:13,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:13,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:42:13,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233352283] [2020-12-22 14:42:13,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:42:13,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:13,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:42:13,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:42:13,552 INFO L87 Difference]: Start difference. First operand 35117 states and 50068 transitions. Second operand 3 states. [2020-12-22 14:42:17,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:17,549 INFO L93 Difference]: Finished difference Result 104729 states and 149540 transitions. [2020-12-22 14:42:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:42:17,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2020-12-22 14:42:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:17,793 INFO L225 Difference]: With dead ends: 104729 [2020-12-22 14:42:17,794 INFO L226 Difference]: Without dead ends: 69871 [2020-12-22 14:42:17,882 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 14:42:18,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69871 states. [2020-12-22 14:42:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69871 to 69833. [2020-12-22 14:42:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69833 states. [2020-12-22 14:42:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69833 states to 69833 states and 99714 transitions. [2020-12-22 14:42:20,251 INFO L78 Accepts]: Start accepts. Automaton has 69833 states and 99714 transitions. Word has length 281 [2020-12-22 14:42:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:20,252 INFO L481 AbstractCegarLoop]: Abstraction has 69833 states and 99714 transitions. [2020-12-22 14:42:20,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:42:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 69833 states and 99714 transitions. [2020-12-22 14:42:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-12-22 14:42:20,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:20,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:20,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:42:20,259 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash -440402607, now seen corresponding path program 1 times [2020-12-22 14:42:20,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:20,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933366757] [2020-12-22 14:42:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:21,830 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 14:42:21,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933366757] [2020-12-22 14:42:21,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:21,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:42:21,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425777519] [2020-12-22 14:42:21,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:42:21,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:21,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:42:21,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:42:21,834 INFO L87 Difference]: Start difference. First operand 69833 states and 99714 transitions. Second operand 3 states. [2020-12-22 14:42:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:23,928 INFO L93 Difference]: Finished difference Result 140828 states and 201159 transitions. [2020-12-22 14:42:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:42:23,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2020-12-22 14:42:23,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:24,240 INFO L225 Difference]: With dead ends: 140828 [2020-12-22 14:42:24,241 INFO L226 Difference]: Without dead ends: 71254 [2020-12-22 14:42:24,358 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 14:42:24,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71254 states. [2020-12-22 14:42:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71254 to 71227. [2020-12-22 14:42:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71227 states. [2020-12-22 14:42:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71227 states to 71227 states and 101684 transitions. [2020-12-22 14:42:27,069 INFO L78 Accepts]: Start accepts. Automaton has 71227 states and 101684 transitions. Word has length 281 [2020-12-22 14:42:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:27,070 INFO L481 AbstractCegarLoop]: Abstraction has 71227 states and 101684 transitions. [2020-12-22 14:42:27,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:42:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 71227 states and 101684 transitions. [2020-12-22 14:42:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-12-22 14:42:27,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:27,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:27,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:42:27,076 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:27,077 INFO L82 PathProgramCache]: Analyzing trace with hash 601848373, now seen corresponding path program 1 times [2020-12-22 14:42:27,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:27,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569950675] [2020-12-22 14:42:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:28,816 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 14:42:28,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569950675] [2020-12-22 14:42:28,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:28,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:42:28,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625953625] [2020-12-22 14:42:28,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:42:28,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:28,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:42:28,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:42:28,819 INFO L87 Difference]: Start difference. First operand 71227 states and 101684 transitions. Second operand 3 states. [2020-12-22 14:42:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:30,582 INFO L93 Difference]: Finished difference Result 142195 states and 203101 transitions. [2020-12-22 14:42:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:42:30,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2020-12-22 14:42:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:30,867 INFO L225 Difference]: With dead ends: 142195 [2020-12-22 14:42:30,867 INFO L226 Difference]: Without dead ends: 71227 [2020-12-22 14:42:30,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:42:31,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71227 states. [2020-12-22 14:42:33,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71227 to 71227. [2020-12-22 14:42:33,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71227 states. [2020-12-22 14:42:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71227 states to 71227 states and 101680 transitions. [2020-12-22 14:42:33,944 INFO L78 Accepts]: Start accepts. Automaton has 71227 states and 101680 transitions. Word has length 286 [2020-12-22 14:42:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:33,945 INFO L481 AbstractCegarLoop]: Abstraction has 71227 states and 101680 transitions. [2020-12-22 14:42:33,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:42:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 71227 states and 101680 transitions. [2020-12-22 14:42:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-12-22 14:42:33,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:33,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:33,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:42:33,951 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:33,952 INFO L82 PathProgramCache]: Analyzing trace with hash 15042359, now seen corresponding path program 1 times [2020-12-22 14:42:33,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:33,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868425666] [2020-12-22 14:42:33,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:35,375 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 14:42:35,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868425666] [2020-12-22 14:42:35,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:35,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:42:35,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92611425] [2020-12-22 14:42:35,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:42:35,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:35,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:42:35,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:42:35,379 INFO L87 Difference]: Start difference. First operand 71227 states and 101680 transitions. Second operand 3 states. [2020-12-22 14:42:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:42:37,208 INFO L93 Difference]: Finished difference Result 142195 states and 203093 transitions. [2020-12-22 14:42:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:42:37,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2020-12-22 14:42:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:42:37,457 INFO L225 Difference]: With dead ends: 142195 [2020-12-22 14:42:37,457 INFO L226 Difference]: Without dead ends: 71227 [2020-12-22 14:42:37,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:42:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71227 states. [2020-12-22 14:42:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71227 to 71227. [2020-12-22 14:42:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71227 states. [2020-12-22 14:42:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71227 states to 71227 states and 101676 transitions. [2020-12-22 14:42:40,024 INFO L78 Accepts]: Start accepts. Automaton has 71227 states and 101676 transitions. Word has length 286 [2020-12-22 14:42:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:42:40,024 INFO L481 AbstractCegarLoop]: Abstraction has 71227 states and 101676 transitions. [2020-12-22 14:42:40,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:42:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 71227 states and 101676 transitions. [2020-12-22 14:42:40,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-12-22 14:42:40,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:42:40,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:40,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:42:40,030 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:42:40,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:42:40,031 INFO L82 PathProgramCache]: Analyzing trace with hash 716106937, now seen corresponding path program 1 times [2020-12-22 14:42:40,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:42:40,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822968728] [2020-12-22 14:42:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:42:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:42:41,571 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 14:42:41,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822968728] [2020-12-22 14:42:41,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:42:41,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:42:41,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265312349] [2020-12-22 14:42:41,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:42:41,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:42:41,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:42:41,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:42:41,575 INFO L87 Difference]: Start difference. First operand 71227 states and 101676 transitions. Second operand 5 states.